Trigonometry - How To Solve Right Triangles

[@TheOrganicChemistryTutor]

Trigonometry - Free Formula Sheet: bit.ly/47diggI Final Exams and Video Playlists: www.video-tutor.net/ Next Video: kzbin.info/www/bejne/iJeTZntupMx7gsk

[@aliso-pv7ll]

I used the law of sines for the triangle of 30 degrees, 120 degrees and 30 degrees. Calculated the hypotenuse for the triangle 90 degrees, 60 degrees and 30 degrees using the law of sines. The length for h was the same as in the video. JG knows how to do same as he has shown in other videos. Thanks for the fine teach. This is a valuable video for the solution by this method. Thanks again.

[@sanopann1896]

the only way to help this guy back is to watch the ads that popping out on his video and I'm going to write this comment to all of his video for you to know you can help him back by just watching his ads

[@rainierlistanco2360]

Diff approach: get the tangent value of angle 60 and 30 then isolate x, then you can now equal the equations to each other. This will give you the value of h directly. Nevertheless, there are tons of ways to solve a problem.

[@georgesadler7830]

MR. Organic Chemistry Tutor, thank for another classic lecture on How to Solve Right Triangles.

[@keithvandergrift6841]

Perfect timing I have a Trig Test on Thursday

[@AniIonYT]

Thanks man I have an exam this prepared me well

[@EmmaHarpe-d6e]

How did it go

[@BillPark-ey6ih]

Another approach: We can see that the obtuse triangle is isosceles. So hypotenuse of the right triangle with 60 degrees is 500. Here, the third angle of that right triangle is 30 degrees. hypotenuse : h = 2: sqrt(3) solving this gives h = 250sqrt(3).

[@kelvinadimas8851]

how do u know its isosceles

[@sanvid8174]

@@kelvinadimas8851 because the base angles are congruent buddy

[@dreadhaisler6054]

I did the same but used the law of sines in the latter part, giving me the equation h/sin60° = 500/sin90°. Sin90° equates to 1 so the we can easily find the value of h from h=500sin60°.

[@BeatriceNachula]

The diagram below shows ABC is a straight line. Angle EAD=ABD=90°.Angle ADE=37°,BDA=56° BC=420,AD=550

[@BeatriceNachula]

Calculate (a) AB (b)BC (c)DE

[@tbhairdiary]

it’s like it was meant for me to watch this...math midterm begins tomorrow.

[@alster724]

Part 1 is with trigonometry (Tan 30 and Tan 60) and Part 2 is with 30-60-90

[@ЯЧеловек-ю8ы]

tysm!!

[@demr5251]

You can also use the law of sines in this particular problem, it will be much faster.

[@jirah98]

Thank You so much

[@RmnHmn]

law of sines works well too

[@wgwells]

Excellent videos--I recommend to all my students. OC Tutor, could I ask what program you use to display your handwriting on screen?

[@TheOrganicChemistryTutor]

This video explains it: kzbin.info/www/bejne/qHO2poClpLKMqNU

[@lilyxox9957]

how did you get the 3 figures at 2.34?

[@lukechang1037]

Shut up

[@mikesmith7620]

Dear The Organic Chemistry Tutor, Just like you mentioned Tan (60°) = sqrt (3) and Tan (30°) = 1/sqrt (3) = sqrt (3)/3 I'm assuming these things are something you're just familiar with. But what if we want to solve a triangle with numbers we are unfamiliar with. Are we to know how to convert such things in a simplified form manually? Or are we to know how they are with prior knowledge?

[@breinvidhighlights3352]

R.I.P. Kobe Bryant

[@divyoroy9056]

Not relevant to this video, but yes R.I.P Kobe Bryant

[@breinvidhighlights3352]

@@divyoroy9056 hehehe yeah, i just cant believe he's gone.

[@christiansantillan5078]

Condolence

[@rajendraraut841]

maths good

[@Cinamuna]

should i do it? i dont know if i should... okay fine i will. fourth.

[@educated_hoe547]

third?

[@lanab8570]

I learned nothing

[@rainxep]

Thank you Lil Tecca

[@rajendraraut841]

I am India goodnight

[@Ferroes]

I am ironman

[@mohamedwalid6181]

Second

[@MCGUIANG]

1st

[@BeatriceNachula]

Calculate (a) AB (b)BC (c)DE