The Maths Prof: The Sine Rule

Find lengths AND angles using the sine rule (aka the law of sines). The sine rule is a method we use to calculate lengths and angles in non right angled triangles.

[joryalnayeem]

your teaching is so clear and you really helped, thank you

[amaanrazick]

I definitely could pass o-levels by watching all these videos.Amazing explanation

[minvs]

Almost forgot to inverse the sine function in one of the sums! lol! Overall, this was SUPER helpful. I have been struggling with this topic for months now, and you made it a cakewalk. Thank you, thank you, thank you a million times. May God bless you <3

[mariacassidyb]

Thank you, it is very clear and practical, easy to understand

[lisamutidi]

I find your methods very clear and easy to understand compared to the methods that we are given in class, thank you so much .

[lxna]

thank you so so so so so much!! I’ve currently moved from doing AQA maths to IGCSE, so there was a lot more content in this syllabus but you made it very clear! thanks again ❤

[asteriamwangamba]

You make math easier your videos are so good and your a great teacher

[ogochukwunwankwo]

Thanks very much I always dreamt of being like Albert Einstein thanks to you my dreams are easily achievable

[SHUBHAM-KEENOO]

EXCELLENT VIDEO
GOD BLESS YOU TEACHER

[Dule-myyc]

So we only use the Sine rule when we know two angles or two sides right?

[karungimuzamil]

if i pass it my IGCSE its all thanks to you, i will be back in august

[racqueljae]

For that last question, is it okay to put:
Sin B= Sin-1(sin67/8 x 6.5)
B=48.4°

So that we can see that B=48.4° instead of 48.4°=B?

[olistanzou]

Thank you so much
You are a life savor

[aspect]

I have an important quiz tomr and I didnt understand this part 3:09, could you please explain it? how did you get 6.19?? I got 10.54 I first did this 7/sin60 and then pressed "=" then did 8.08/sin50 and I got 10.54

[aneledube]

Please consider teaching the following on top of what you've been teaching
1. Coordinate geometry
2. Transformation 2
Otherwise your videos are incredible

[salehatahir]

how do we know when to use the sine/cosine rule? You did not explain this!

[ashleyjordan]

Did anyone get the same answer as the Maths Prof for the first triangle where we were to find the size of the angle? I got 37.6 degrees, but she said 35.8 degrees?

[schwantz]

I am typing the sums into the calculator but getting different answers to you....!

[tramhicks]

Love it but sometimes l can't see your writing. A little bit annoying.

[talalmahtalaniah]

As l, l just need your Whatsapp number so that we can communicate . I want to pass, this year is my final exams . I just love how you teach thank u so much ma'am