GCSE Maths - Similar Shapes

This video explains what similar shapes are and how to use scale factors to find the missing length of one of the sides.
This video is suitable for maths courses around the world.
KS3 - All on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course
A-level - Not in your course
Maths Playlist:
• GCSE Maths (9-1)
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video

[@Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

[@mostafamansour2495]

Dude your a legend! You made me understand the lesson better than my school teachers!

[@rawanosman3194]

Exactly

[@Jkxthetic._.x]

Same!

[@AsiyahMahmood]

Real.

[@sabeenshahid2024]

You make it so easy to understand! This channel deserves more credit.

[@Cognitoedu]

Aw thank you very much Sabeen! 🤩

[@manognax]

More helpful than my school will ever be! I missed revision for my test on similar shapes and proportions and you helped me pass it! Keep it up!

[@schiffes1285]

yes so true

[@youssefrahal2967]

To be honest, this is one of the best educational channels I've ever seen on KZbin. You just deliver the idea so simply. THANK YOU GUYS❤

[@Cognitoedu]

Ah thank you very much Youssef, glad you're enjoying our content 👍

[@farhanadewan5937]

Even though I don't follow the GCSE curriculum, the one I do follow (CAIE O levels) is extremely close to this one, and even if I don't find a video on a specific topic, I always find it here. Thanks a bunch for doing syllabus-specific videos, and concise ones at that too. Most of your videos are very helpful, as short bites for revisiting topics or even when I need a quick helpline for upcoming exams. Can't thank you enough; keep going! Even more helpful would be if you could look into other subjects, specifically commerce ones. No commerce channel has a proper video quality, nearly all of them being blurry and the teachers not having a clear voice. And as a suggestion, I could make the transcripts for Business Studies and Accounting, and even Economics.

[@FloatingPhyzzxx]

If you want to revise, this is the best place to go. You have no idea how much cognito helped me. Cognito is basically the mother of all teachers lol

[@Cognitoedu]

Thank you so much Phyzxx, glad you're enjoying the channel 😊

[@peaches4life]

This guy just explained something in 5 minutes that my teacher couldn't in a month Legend fr❤❤

[@LijoJacobPankavil]

At 0:35, you say 2 trapezoids are similar just because the angles are same. That is true for triangles, but not for trapezoids. For trapezoids (and other polygons), having equal corresponding angles does not automatically imply similarity unless the sides are also proportional.

[@ryze5436]

Perfect I am so glad you do these types of videos thank you

[@quickar9951]

Your channel really helps me with studies, thank you for making learning easyy! =))

[@Cognitoedu]

That's great to hear, glad they're helping 👍

[@eyadmohamed5387]

You are the best teacher

[@arianne2893]

saving my gcse's fr, i started understanding better

[@GingerNinjaJazz]

Thanks ! This makes much more sense now

[@DudeLuqYL]

Really nice answer and good video too bro

[@lu3yyxa]

This guy is a Legend because he makes learning easy :)

[@vladimirkhazinski3725]

You cant tell for certain that the quadrilateral is similar if all angles are the same. That only works for triangles.

[@IsraaHusam]

wrong

[@eternalknightrl591]

Your videos are soo helpful and they always make me understand in so little time thank you

[@Fax973]

Bro you make my life easier my teacher does not how to teach she sped from our time 1 hour and no one have understand you only 5 minutes and I have understood ❤🌹

[@rix_1723]

thanks a lot, i knew this already but just to make sure i watched it again.

[@abrarulhassan3292]

Very helpful videos, Thank you very much

[@faidhakasi]

Thanks i have a test comming up and i feel like this helped me alot

[@cristinamz2137]

Thank you. This was very helpful.

[@WendyIrene-el4mv]

Triangle PQR is an enlargement,centre 0,of triangle ABC

[@PhilippaWorsley]

The makes so much sense 😊 i wish you were my math teacher

[@issuegenre6908]

Any video on barometer and nanometer? Atmosphere pressure,

[@alanszafarczyk4068]

You're a Great Smart Math and Science Teacher

[@excee9378]

Thank you for the video

[@Tristans.Videos]

I watched this video right befors my exam so I hope it goes well

[@frankynipprrrraitoo9095]

Can you make videos on A-level topics? 🙏

[@alanszafarczyk4068]

Your math is more easier. I like your math. These Shapes are the Same because they're look the same but the size might make them look different

[@alexebereonwu158]

Love this, this is so helpful thanks

[@fazilaazwar9736]

Love your videos What app do you use to animate?

[@Cognitoedu]

Thanks Fazila, it depends but generally we use after effects and final cut pro 👍

[@fazilaazwar9736]

@@Cognitoedu Oh nice!

[@falll7631]

o great finally I'm one of the first to post a comment... I study your physics videos but I just wanted to say thank you really much becuase by the time i watch phys vids there's already tons of comments

[@Cognitoedu]

Thanks Mai_Ya!!

[@farihasheikh5376]

Can you hurrily release probability and coordinate geometry videos?

[@seb_14]

Thank you man

[@zapper9280]

this helps so much

[@orlaghmaeeeee]

thank you sm! made me understand it way better than my teacher

[@Jkxthetic._.x]

Thannks it helped me alot❤

[@ApsiestOfficial]

Thank you

[@alexandroochoa5858]

At 0:33, that is a false statement. Knowing the angles are congruent is not enough information to determine that a pair of shapes are similar. Imagine stretching a rectangle horizontally without distorting the angles. You would scale the top-bottom pair of lenths without scaling the other pair.

[@henryhunter1773]

So helpful. 🧠

[@Ash-oz6wf]

thank you so much

[@RosesAreAlsoPink]

Thanks

[@SILENTXC7]

Best vid ❤

[@asmrtimes7897]

Can you please tell which software you use to make these videos?

[@Cognitoedu]

We use Adobe After effects for the animation and procreate for the artwork :)

[@achoo_w]

TYSMMMM❤❤❤❤

[@brownifeoma9174]

I like the idea

[@falll7631]

btw similar triangles are real importnat :) ))

[@xqandstuff]

0:26 Wait a minute, don't you need to know all the sides too in order to make sure it's similar? Correct me if I'm wrong

[@omarwistohn9806]

you're right. a square and a rectagle have the same angles but clearly they aren't similar

[@quiquegamer5560]

Hi, I just wanted to know if you can do computer science because I'm taking it for my GCSE's next year

[@schiffes1285]

thanks your helping me understand

[@mustafa4971]

this was so helpful thank you so much. Please keep up the amazing vids!!

[@Cognitoedu]

Thanks for the feedback Mustafa!

[@QingDuan]

omg,i understanded in just 5 minutes

[@jill.qiqii_]

to the bone solo please !!~~

[@SocialistNerd]

all squares are congruent or similar 😲

[@OMARABDULAZIZ-py7vn]

could i replace the scale with a ratio?

[@Nertmob]

Yeah I think so. But its more unneeded effort

[@WendyIrene-el4mv]

Question paper 4

[@Jack_Griffiths374]

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[@eviekidd6480]

ayy i’m the 1000th like

[@georgepilkington7849]

Fix your mic

[@moba1209]

i dont see anything wrong with his mic

[@georgepilkington7849]

Watched this vid in school dragged on for ages

[@ryze5436]

@@georgepilkington7849 why u here then

[@georgepilkington7849]

@@ryze5436 coz it's funny

[@ryze5436]

Funny how

[@AshTheAshamed]

Thank you so much I forgot I had an exam on this the next day and I passed it! You saved my grade lol ❤ 🫴

[@tasbil06]

Thanks

[@Charlie-mq8rw]

Thanks