Circle Theorems - GCSE Higher Maths

[@mtc-j9i]

These are way better than the theorems and how they’re presented in American texts. Nicely done.

[@GordonfuckingRamsay]

and english

[@olivermathiasen3594]

Im not suprised

[@joshuawicks6534]

My teacher always talked about angles "subtended"

[@dixztube]

I’m 40 learning this stuff for fun now and this is stuff hs kids are learning. That’s awesome, do great things kiddos

[@f0xt3r11]

I'm 14 and learning this at school, don't quite understand how this is fun 😭

[@DarkShady8]

@@f0xt3r11 ikr even my exams are due to start in 10 days and i still dont understand how now how funs that?

[@kiiz9420]

@@f0xt3r11im 14 and same

[@The-Survivalist1]

for. FUN?

[@DarkShady8]

@@The-Survivalist1 nah bro by "fun" i was being sarcastic i just revise watching sir @1stClassMaths

[@hr11shs]

got my gcse tomorrow. thanks for the helpful video

[@alvaro63168]

fr

[@meganchicken4159]

same good luck ahhhh

[@MKing-io3su]

Frr

[@gachacatproductions431]

Same good luck 🤞

[@subii_0]

Got my GCSEs in an hour

[@davidstanislaus948]

this explanation is better than teaching on a board...thank you so much ...God bless U🤩

[@PrincessElizabethBah]

You actually made me understand circle theorems thank uuu

[@sullygamingx5533]

Honestly just an amazing video, thank you so much.

[@1stClassMaths]

You're very welcome!

[@angelalinna2536]

this is my 3rd time going to take my sc exams i understood this after 4 years..im so grateful to finally understand this..i have exams tomorrow..i hope i pass this time

[@anjala4592]

I have a mock exam today I hope I pass because of your videos

[@1stClassMaths]

Hope it went ok!

[@raven_4744]

Did you pass?

[@MuhammadUmar-zb6hf]

Bro how it went?

[@muhammadhuzaifa3189]

Did you pass or not?

[@NabehaSajaaf]

Omggggg my other name is also anjalaaaa.....it's js so rare to find someone with the same name🤩🤩🤩

[@roge2342]

Just wanted to say, as someone studying this from Brazil, your channel is an amazing gem, keep up the great work and thank you 🙏

[@DannyOF]

from brazil is mad 😭🙏🙏

[@azeemrazzaque9949]

u play minecraft 😭🙏🏼​@@DannyOF

[@DannyOF]

@@azeemrazzaque9949 ????

[@DannyOF]

@@azeemrazzaque9949 ???

[@GongyiXiao]

Got my iGCSE exams tomorrow at 10AM. 12 hours left. Thank you for this video, it’s super helpful! Let’s hope I crush this test :D

[@1stClassMaths]

GL

[@pinkflamingo_]

how was it

[@Jimmy-fr1ig]

@@pinkflamingo_90% chance she doesn’t respond 💀 they never do

[@GongyiXiao]

@@pinkflamingo_ it was really good! No circle theorems came up on it but I bet that just means that P4 (which I’ve got tmrw) is packed with them. I made a few mistakes but I calculated the lowest I can get and it’s around a 85%, so I think it’s a guaranteed A :D

[@GongyiXiao]

@@Jimmy-fr1ig defied the odds 🔥

[@limesqueezy6150]

i love this. i was so lost in circle thereoms but learnt it and could answer questions correctly thanks to you

[@aherase4216]

i have my test in 20+ days, i dont understand a thing yet.

[@hebametwally6555]

thank u so much man i watched hundreds of circle theorems lectures but i didnt get it till i watched ur video ur very talented

[@T1dE120]

Hey, was looking for a guide on circle theorems. Doing early GCSE and was really struggling with how to implement these rules. You've really saved me! Thank you so much!

[@1stClassMaths]

Great to hear!

[@johnpapadopoulos9057]

What a rich review of geometric Relations. Thank you. 10:01 10:04

[@Al-Rehman-km4cw]

1: Angles in same segment are equal. 2:angles in a semicircle or on diameter is right angle mean 90°.3: the angle at the centre is twice the angle at the circumference.

[@ronicadumbu9482]

This is the best and the most thorough explanation of circle geometry wow .I understand a lot now😊

[@1stClassMaths]

Glad to have helped :)

[@tsegaasfaw742]

Really like the way you teach. Thank you very very much.

[@1stClassMaths]

You are welcome!

[@robert8552]

Very well presented - Thank you!

[@roland3et]

Thanx for putting all that stuff together in one video of reasonable length! Great job 👍 🙂👻

[@Zya_zya_zya]

You're helping me with a test in 1 hr 🙏

[@MohamedMathani]

your programme is useful to my mathematical life

[@3_ormorecharacters]

literal lifesaver oml 🙏

[@Daiyurunning]

Danganronpaa

[@Jessicamdinga]

Thank you so much sir.. you have helped me to understand circle theorem better 🙏

[@1stClassMaths]

You are most welcome

[@Extraterrestrial-Rizar13]

You've done what I thought I'd never do .....understanding the Circle cause I know it now oh my God 😢❤ I'm no longer afraid

[@amysantiagosbinder]

THANK YOU AGAIN! i think i’ve commented on ur videos before haha😂.but i never ever rlly understood circle theorems which is why i dropped marks on that section in my maths test. already 3 mins in and everything feels clearer. DON’T STOP WHAT YOU’RE DOING! THANK YOU SO MUCH!

[@1stClassMaths]

Very glad to hear this! I will keep making content don't worry! Thanks for commenting. :)

[@leenaparikh7728]

I was having trouble recognizing angles in segments before this video. But this video cleared all my confusions regarding this topic. Great video. Even the examples taken were difficult and great, considering this video is made to help students.

[@1stClassMaths]

You're very welcome!

[@johnadams1976]

Fab video - so clear.... thanks... Helping daughter with GCSE maths!

[@Dragonfruit._.]

this video explained the topic so well! i can actually understand it step by step, thank you so so much! 💜

[@1stClassMaths]

Glad it was helpful!

[@sam-12345]

i have a math test in 2 hours 😭

[@BabahBekrine]

Bro😂😂😂 never do that again every thing should be in his time 🫡

[@karlosm8466]

So, how did it go?

[@Dim1iscoding]

What score did you get

[@rojer9542]

I had a math test in 1988😊

[@lebogangmohale2791]

Story of my life right here, watching KZbin videos hours before a test.😮‍💨

[@daboffey]

Another way to calculate angle BCF in the second worked example is toagain observe ACD is 35 deg (isoceles triangle) and ACB is 90 deg (since AB is a diameter), so angle BCD is 125. This means that BAD is 55 deg (cycilc quadrilateral) so BAD is 20 deg (55 deg - 35 deg) as is BCF.

[@CoolReacts-ud2nh]

I was in a 2 hour class about circle theorems and this video helped me more than that class

[@BritishMillitaryEdits]

My teacher just posted a four hour lecture about it, when this 14 minute video covers it all.

[@Afrayam]

So underrated tysm

[@1stClassMaths]

No problem 😊

[@fortdayexe]

Example 2: It's much easier: ACD = 35°; because the legs of the triangle are the same lenght ACB = 90°; same reason (Diameter) DCE = 35° (Last theorem) FCB = 180° - 35° - 35° - 90° = 20°

[@bchiroma2345]

Hii, Im 12 and did not understand alot of circle theorems in school cause I was sick, and now I have my maths exams tomorrow✋😭 Was panincking cause i couldnt find a good video until I came across this. TYSM you saved my life! Hope i pass my test lol!

[@1stClassMaths]

Glad I could help!

[@itstriin]

doing circle theorem at 12???? i’m only doing it at 16 😂

[@shriyas6937]

yo literally me !! The one day that i was absent cause i was sick, the teacher gets done with like 5 theorems !!! i am panicking wish me luck people i have my Math exam tomorrow 😭 🤞

[@minaalwaseem3976]

got my gcse today wish me luck :)

[@mrpianist5248]

Top viewed video, pls reach 1 million

[@Amna-u5i]

your explanation and the way you deliver the idea is amazing, also love the amount of examples thank you.

[@1stClassMaths]

Glad you liked it!

[@gianinamazurchevici5501]

Have you an idea? How can I solve this problem, please? Given a square ABCD of side 10 cm, and using the corners as centers ,construct four quadrants with radius 10 cm each inside the square. The four arcs intersect at P,Q, R and S . Find the area enclosed by PQRS. Thank you so much .

[@piediepew3464]

I have igcse math exam tomorrow pray for me guys

[@deardemuredawn...5548]

Same😭

[@Amna-u5i]

same, good luck !

[@adamdahir779]

same wish you the best

[@PradeeshN-e4l]

God bless you

[@xoxoxie0]

Same 😢

[@khowlaovais4947]

Thank you so much I really appreciate the use of different colors to explain the concept

[@1stClassMaths]

Glad it was helpful!

[@anisftp]

Excellent Love from Dubai An Indian

[@captainchaos1741]

Just started revising today. Got my exam tomorrow 😭

[@amerking9798]

Same

[@ClaireForsyth]

bro i’m learning this whole unit at 11pm bc i was away on medical leave and my teacher won’t cut me any slack

[@Seismicjun]

The day after tomorrow I'm writing ,, Man your a life saver

[@beckym8245]

Thanks for this. I can now help my son with his revision.

[@mianali9339]

Such a good short summary of theorems❤❤ Imagine watching this an hour before the exams😂😅

[@Wieisdustybun]

Then you're either going to get there and not remember anything or you will remember everything.

[@aeromationsYT]

Got my mocks in a week, I am currently surviving using these vids, wish me luck.

[@1stClassMaths]

Good luck!

[@iexpertabdul199]

Watching this 5 hours before my exam wish me luck

[@WNTR_JOYTOY04]

how did it go?

[@JacksonMaraba-r6u]

Thanks very much for your explanation and God bless you.

[@RamaAbuaisheh]

Watching this 2 hours before the exams 🕺🕺

[@kaithecrusader7061]

howd it go?

[@Slicedits47]

Same here

[@mr.nightly6272]

real

[@siphodhliwayo9154]

My fav topic. Now I can attack it without fear🎉🎉🎉

[@piyushpandey2480]

So crystal clear concept

[@amyyamyamyy]

good luck to everyone watching 30 minutes before the exam

[@chamilaranchigoda]

Thank you for the clear explanation!

[@jitudash4910]

Excellent explanation

[@SchoolAccount-kw7tw]

11:54 is it not angles of the same segment? Isn't angle CAB and COB 58°? I'm so confused 😕😭 Or does it have to be on the circumference for the theorem (angles in the same segment) to apply?

[@1stClassMaths]

For the angles in the same segment they both need to be on the circumference. I think you worked this one out yourself :)

[@JosephMutemwa-nq5xm]

Watching from Zambia

[@L3arnability]

There's this really ez way to answer the last question, I'm not sure if it will get you full marks though? you create an imaginary tangent that touches the circle at point B, then the radius (QB) makes a 90 deg angle with the tangent (theorem) and angle ACB = the angle made between the chord AB and the tangent (alternate segment theorem) = 40 deg angle ABO + 40 deg = 90 (cuz the radius makes a 90 deg angle with the tangent) angle ABO = 50 deg

[@bouazabachir4286]

Thanks a lot professor I follow you from Algeria

[@1stClassMaths]

You are very welcome

[@tewoot2716]

Watching this 1 hour before my exam 😀

[@rishipatel9173]

Best teacher on god

Thanks!

[@1stClassMaths]

Thank you very much for this! 💙

[@elitesxope179]

thanks this was very helpful👍

[@kaylaolyn8648]

i love your videos please don't die

[@1stClassMaths]

I promise, I will never die.

[@mima4287]

Very useful. Thank you.

[@v-a-r-a-d]

Congrats on 100k views!

[@1stClassMaths]

Thanks for pointing this out! I hadn't realised. That's incredible!

[@maheemtxt7]

got p2 tmrw muchas gracias aficio esto es para vosotros siuuuuuuuuu

[@aaravarora5860]

Amazing video

[@ronksx]

watching this an hour and 20 mins before my paper 1 gcse x

[@soobeanies]

same

[@JacobMelia0046]

circle theorems is paper 2 and three lol

[@angeliclilys8222]

I’m kinda confused on the alternate segment theorem- how do you know which one angle matches with which?

[@wxrqz9]

thanks u need more views :)

[@1stClassMaths]

Thanks. The algorithm doesn't like me so much though :D

[@Slicedits47]

Thank your mind so much this video is sooo clear

[@rajdeepbose2600]

Before this video I had great difficulty in understanding circle theorems.

[@alittax]

For anyone interested, here's a video where they prove these theorems: kzbin.info/www/bejne/eZ7To4ONmLGnos0

[@RoyZuva]

Thank you very much, l now get it and i am gonna ace my exams.

[@TrideepSingh-w7h]

Nice Information

[@ZahraMohammedNadir]

Hello thank you so much. Is isoceles triangle's angle 35°?

[@husnajamilhusnajamil673]

It really helped thank you.

[@1stClassMaths]

You're welcome!

[@DarshanLewis-ns5pp]

I have maths test next 10 min😭😭

[@GraciousPhiri-xi9ki]

Well explained sir.

[@cantinflashpinhap2066]

Muchas gracias por tomarte la molestia de hacer este precioso video.

[@1stClassMaths]

No problem!

[@JohnGood-w8d]

best videos!!! but just one question, are there not 8 Theorems? the one that goes " the radius through a midpoint of a chord will bisect the chord at 90 degrees"

[@1stClassMaths]

Hi yes you're correct. This theorem is almost never used but you can find it in my proof of circle theorems video.

[@JohnGood-w8d]

@@1stClassMaths ok thanks!!!

[@lanapieterse4918]

could you please do a video on euclidean geometry?

[@_OwO_96]

underrated aff, tysmm i hate this topic

[@1stClassMaths]

Do you like it now? :D

[@gmshakir7148]

Honorable Maths expert i have a question entangled with, can you solve it for me being a generous maths expert please?

[@shazansharafath2155]

I'm watching this video 4 hours before the Edexcel IGCSE 9-1 Mathematics Higher tier

[@ali-alsfar]

Thank you very much that will help

[@prasadakalli9169]

Excellent , Thanks

[@rim2675]

i’m unable to understand the alternate segment theorem

[@M1Miketro]

8:07 The way I used is slightly simpler. ACD = CAD = 35º ADC = 180º - ACD - CAD = 110º ADB = 90º BDC = ADC - ADB = 20º BCF = BDC = 20º

[@1stClassMaths]

Thanks for sharing, although I am not sure it is really any simpler? There are often many ways to approach circle theorems questions. As long as you're clear it's all good!

[@charliemusleh5842]

Preach 🙌🙌

[@craigbenz4835]

How does one find the smallest circle that will include three points? What about ten points?

[@รักพงษ์เจนอนุวัฒน์]

Thank you very much 😊😊

[@chinnarao9711]

Nice explanation

[@1stClassMaths]

Thanks!

[@LouisReeves-bb3we]

on the 3rd example can't you do 90 degress(radius and tangent) is in the same segment as ABO so ABO is also 50 degrees which would save alot of time or am I missing a rule that means im incorrect?

[@1stClassMaths]

Sorry I don't follow your explanation here.

[@elizaclouds]

Thank you!

[@ratomil1561]

Why are there only 6 we were taught nine or are these the important ones?

[@HudhaThauqeer]

Literally my sir did not explain this properly so when I watched this video I understood the concept

[@EagerTaurus-cd7kf]

God bless you 🙏

[@LindokuhleChichi]

How can I like this 300000 times😭😭😭😭😭

[@1stClassMaths]

Not sure you can. Once is plenty though thank you :)

[@1stClassMaths]

p.s. write 300 000 in standard form for a bonus like.

[@vnc-0307]

How do you prove the last theorem? I dont find any constellation of lines and angels to show that the opposite angle inside the circle is equal to the angle on the tangent, except when the angle at the tangent is next to an 90° angle Edit: Nvm i got it, in Triangles and at lines: all angles add up to 180°.

[@1stClassMaths]

Glad you saved me a job :)