Trigonometry: Finding missing sides and angles

[@tman6762]

Thank you from an old man! I needed to figure out the dimensions of an angled grab bar for my house. I remember struggling in high school with trig and had essentially given up on learning. Sometimes, I think it was simply a combination of poor teaching and myself being easily overwhelmed and then giving up, etc. Interestingly, I enjoyed math when I understood it. I greatly appreciate your simple and straight forward explanations. I didn't feel overwhelmed and I was able to calculate the leg lengths I needed for my angled grab bar. Wonderful, wonderful and wonderful! Keep up the good work! Wish you were there when I was a kid. Thanks!

[@sciencemadesimple8924]

This is so lovely to hear! I'm really glad you found my video useful!

[@justinreed4052]

I can't express my absolute gratitude for the simplicity of this video. I've been banging my head against the wall trying to figure out the sequence to calculate each. Thank you!

[@hyunjins-ex4562]

I am seriously beyond thankful, i've been so confused and stressed not even knowing the basics but ur like a dame in shining armor for me. Thank YOU so much😭💕

[@moathodinelsonphale9634]

I will never forget this u are important god bless you❤I'm writing my exam this October i will do.good

[@RayyanJamil-m5z]

This has really helped me out because this is such an simple explanation. Thank you so much!!

[@vincentxie3090]

Tysm, all these questions I've been so confused about are finally helping me

[@usamausama9068]

Thank you so so much! This was an easy and simple explanation rather than one of those complex ones. I really appreciate your time and effort in creating this video and helping out people like me.. this helped me out! Finally understand!! I have been struggling with this for weeks. Now everything has changed because of your video!! Great job in explaining

[@HazelHarehoLavai]

This really help me 🥺may our good Lord continue to give you a heavenly wisdom and knowledge to teach the kids that are in need🙏

[@lea_jk]

Omg i love this video ,i have a test tomorrow and its going to help me so much ...thank youuu, i literally download the video to help me each time i have difficulty

[@UnomuinjoZamuee]

This us literally the best explanation ever thank you so much

[@spheh]

If i watched this video before writing my test,i would have passed 😭,but I'm surely getting an +A for my next test😌....THANK YOU SO MUCH FOR FINALLY MAKING ME UNDERSTAND 🌺❤️❤️❤️

[@Kanuoligmanut]

Did you get A+?

[@JigmeeLodayJukzin]

@@Kanuoligmanut😂

[@theresarowe9100]

​@@Kanuoligmanutlol

[@johnpatrickmorgado6443]

Ok

[@noorian-ripublican__bithi]

Did u get A+ or not?

[@BradleySchietekat]

Excellent for a quick refresh. Your voice is very relaxing/ calming.

[@woof_iiiu]

Thank you very much! This really answered alot of questions I had when it comes to answering these type of questions, thank you so so much! Keep it up and God bless!

[@woof_iiiu]

@Turntochrist12 Amen, praise God !

[@luongly8157]

thank you very much for your times to make up this video. I understand what they’re now .after your videos.

[@vincentbarkley9121]

Lovely, perfectly clear, simple explanation. Great job. Thank you.

[@abayneshbogalekabtyimer1954]

Wow thank you so much you're a genius😮 I hated math but I after watch you I loved it❤

[@goldroger2856]

Biggest respect for you ma'am I really really appreciate your help ❤

[@christiandeocampo7533]

Thank you so much you were such a big help. Your examples are brillient it helps me to understand easily again thank you.

[@faresnaser9914]

I’m cooked…….

[@naturegreen123]

Don't give up....Google Kevin Maths. He will help you. His great.

[@Terry-te7kt]

Same

[@Megan_C_08]

I failed my test 😭

[@Terry-te7kt]

@@Megan_C_08 oh no

[@Renzo.2ez]

Facts

[@indopakk]

U r a born teacher...

[@kalai-hi4gb]

Good clarity, neat handwriting with explanation great job

[@moathodinelsonphale9634]

Wow that's the simplest explanation i had never seen🎉❤❤

[@cionnerolle8442]

Thank you thank you so much for this i really needed this tip on triogonometry for my final exam

[@ravichaudhary3054]

What if perpendicular is 2000cm and base is 20cm then what will be value of theta ..please tell

[@punaraoneli6738]

Thank you so much for this video i understood it very well even feom my tutor i didnt understand this lesson thank you so much...😁💗💐

[@usamausama9068]

I am going to share this video!!

[@michaeltraynor4825]

Brilliant explanation, thank you, Rachel.

[@osamaawaisawaisahmad5065]

thanks it is very help full

[@moosaimran4528]

hi how do i know when to use sin, cos and when to use tan?

[@glenda8161]

@ Spheh do you have trigonometry as a subject . Or is it a chapter in mathematics.

[@444Lepara]

Can you explain why you rounded off differently on the explains you gave.

[@sciencemadesimple8924]

I was doing everything to three significant figures, so there were different numbers of decimal points for each answer depending on how many digits there were before the decimal point. I have a video to explain rounding here: kzbin.info/www/bejne/m2WxlX2Yl7F9eLs

[@sophiamartin4534]

This was very helpful ,good job 👍

[@rheawindsor4625]

Thank you so so much .. this helped me out! Finally understand!! ❤ been struggling with this for weeks. Great job in explaining 💯

[@SolomonDavid-fj6yq]

Well explained like it

[@SleepyBasket-fu6mw]

Can you please do a video while using a 4 figure table to find the tan inverse

[@JanetMercy-cf9nz]

Thanks so much, for the perfect explanation

[@Lin_Parker]

POV🤔: KZbin Teaches BETTER than SCHOOL! I just realized that! Studying through KZbin is better than sitting at clz 4 1hr 😅

[@Lin_Parker]

Thank you, Soo, MUCH!!! I just realized how easy this lesson was 4 a 14 year old like me!😅😂🤩

[@davenhaven]

Same fr

[@Legend45150]

we understand how you teach us thank you

[@michaelbardot2017]

Thank you for making this so easy to understand!

[@beltanalule]

yo really Fantastic

[@kritisarraf8986]

Thanks for this trick It will help me lot.👍🏻👏🏻❤

[@IzabellaRodriguez-i8e]

So question I put in my calculator Sin(15) and it gives me like a really weird answers instead of a number?

[@sciencemadesimple8924]

Try pressing the S D button, which will transform your answers between numbers and surds. It is also worth checking your calculator is in degrees (there's a little D at the top) and not radians (a little R at the top).

[@miztanesh5240]

thx so much for u formula that helps me so much to understand this topic 😊

[@Attiyahtul-MueedAdeniran]

Thanks so much ma,I really enjoyed it

[@gabrielbarredo4776]

Thank you so much 🎉🎉🎉🎉❤❤❤

[@typ0761]

For the middle triangle, I don't get it, cos=15/a, a we don't know the value of, so, for the final answer, you need to devide 15/cos, but we don't know cos. Please help

[@sciencemadesimple8924]

Because the angle is 55, you divide 15 by "cos15" - using the calculator function for cos, as I demonstrate at 6:39

[@zawmoethant4305]

This was very helpful ,good job.

[@ciaramundy3419]

Great video! Really well explained :)

[@bobbymathew4622]

Actually i have a dought " for the 2nd answer how did you get that 26.2 i got 26.15170193 as the answer idk how you got that '.2' can anyone pls explain

[@sciencemadesimple8924]

As you can see on the calculator, that's the answer I got too. 26.2 is 26.15170193 rounded to 3 significant figures.

[@teyannabenjamin3832]

When do we use inverse? Is it just for TAN?

[@sciencemadesimple8924]

No, each of sin, cos and tan have their own inverses (usually the second function above the main sin, cos, tan button). You use the inverse when you have two sides and are trying to find an angle.

[@teyannabenjamin3832]

I was really baffled about that thank you for answering :)

[@drakiiki8594]

Thank you very much madam

[@AliyahIlyas-k9m]

Litterly i understood like thanks so so so much❤😊

[@Emily_Moonlight26200]

Thank you so much 🙏🏽💫

[@prabinsingh4]

Thank you teacher 😃

[@AlhajiIssa-s9h]

Very good need more of your videos

[@aftaburrahman7905]

I have some problem would you like to help me

[@tafhimazara91]

Thanks a lotttttttttt❤

[@kunai9044]

u saved me 1 week before my exams it was my first time learning this so thanks

[@based_yeoman9138]

Simple indeed. Thank you!

[@valerian8587]

What calculator do you use?

[@sciencemadesimple8924]

I use a Casio fx-83GT plus, but many scientific calculators are very similar, so it shouldn't matter too much. Any Casio will probably work very similarly.

[@linahrithagov4653]

Thank you so much 🤍🤍🤍🤍🤍

[@mysteriousbootyhead2083]

What of its 150 degrees?

[@sciencemadesimple8924]

You'll need to use the sin or cos rules for triangles that don't have a right angle in them.

[@UyoDaughtersofSarahMinistry202]

This is helpful thanks 👍

[@Luci4TCND]

Helpful as thank you so much

[@hurky7232]

Very helpful

[@nescafeblend43]

TYSM

[@nickcappelletty5678]

Love this thank you

[@ginochavez4009]

If only my teacher could explained as good are this lady 😢

[@albertdamiles6486]

Thanks a lot❤

[@OdunayoIlebani]

Thanks so much I passed my exam

[@jonathangan3366]

Thank you

[@mohsinamin4031]

I have a doubt where we us SIN COS TAN whenever you're available please answer me thanks

[@sciencemadesimple8924]

Hi, what is your doubt?

[@EJ_2008_Ind]

@@sciencemadesimple8924 he is asking where we use soh cah toa

[@sciencemadesimple8924]

@@EJ_2008_Ind You use it when you are asked to find missing angles or missing sides in right-angled triangles.

[@CatsAreLovely881]

omggggggggggggggggggggggg, ty for the shift tann to be tan-1. Thats why mine syntax errorr T T tysmmmmmmmmmmmmm love yaa

[@RepeatMyLagz]

God bless you woman

[@DorcasSarpong-bn2wb]

Much appreciated 👍

[@MayaMistry-h9p]

How come for the second angle we weren’t given the opp side

[@sciencemadesimple8924]

Because you only need one angle, one side, and to find the length of the lettered side (in this case, a). If you wanted to find the opposite, you could use Pythagoras' theorem after finding a.

[@AmenTarik]

I wish I could give 100k now really thanks 😊😊😊😊

[@AlisihiuchennaJohn]

This is good 🎉

[@nadershaji5356]

Thank you so much

[@Aisha-gd6dq]

Thank you bestie

[@karthickrajendran7057]

Thank u deivame 🙏

[@Ethan_Ethan-x5l]

I literally can't believe im watching this video 5 days after the exam slapped the sh*t out of me 😂

[@throwawaychannel7612]

Thank you, you saved me a migraine from trying to figure this out on my own lol

[@SpirSpir-h7y]

Thanks sis

[@randomlessons0]

How can she mess up saying "sigma" instead of "theta" so bad in 5:34 / 10:19 😂😂🙏🙏👍👍✅✅ that actually made me laughing all the way to the floor😂😂😂😂

[@WakabiSamuel-vi8gr]

Thanks

[@Ballerina.Dancer]

THANK YOU

[@Factsyoudontknow-5]

ayo i understand whats going on but this is completely different from what i am learning . For the 3rd question shouldn't you press inverse tan then divide 5 over 8 ? For the rest of the new viewers , yall can scroll down to see the other comments that were helped.

[@sciencemadesimple8924]

So you could do tan^-1 (5/8) straight away. That's doing more or less the same thing I am, but just does it in fewer steps. The explanation above just breaks it down a little more.

[@Factsyoudontknow-5]

@@sciencemadesimple8924 okay bet thanks 👍

[@mukholimiltonabra8364]

Great 🤩🤩

[@GigaMario86]

This was useful

[@ImenaKayihura]

What if u have all sides

[@sciencemadesimple8924]

Then you use a slightly different method using the Cosine rule. I don't have a video on it, unfortunately, but there's a guide here: www.mathsisfun.com/algebra/trig-solving-sss-triangles.html

[@billracicot2110]

All of these videos are like "the answer is use your calculator." Euclid didn't have a calculator. How is this actually DONE?

[@nathangg43]

No one cares

[@moneyoverngas]

@@nathangg43People who gaf about their grades and education care. sthu

[@strawberryzin4332]

got a different answer in question #2. in my calculator (in phone with sin cos tan) the answer is 26.31

[@sciencemadesimple8924]

I recommend using brackets/parentheses to see if that helps you get the correct answer?

[@athienohope9673]

I have tried all the numbers before seeing the video and i have passed all.

[@Third_CT_Kiid]

❤️🙏

[@HappyAbyssinianCat-qp9ej]

Lovely

[@adaoranwoba2394]

Thanks a great deal. Well detailed explanations.

[@BradleySchietekat]

Just annoyed/confused you can't use the same manipulation at 7:15, like you could for the previous example. grrr But through following what you did and said there must be a rule that I am not familiar with, I will check the rearranging video.

[@kumbajome4017]

Thank you so much but please enlarge the writings to be recognize

[@OriginsPlays]

nice

[@Alliyah458]

👏🏻❤