Question

Find the measure of the indicated angle. Need help please.

I need explanation too

THANK YOU

Answer 1

33.95m

Explanation:

`(33)/(sin(60)) = (c)/(sin(63))` *Cross multiply*

`c(sin(60)) = 33(sin(63))` *Divide by sin(60)*

`c = (33(sin(63)))/(sin(60))` *Solve*

`c = 33.95m`

Answer 2

Triangle angles are always 180 ( mathematical proof) and we have 2 already so we determain the this one is 57

we can now use law of sin ( SinA/a = SinB/b = SinC/c ) or we can reform it to ( a/SinA = b/Sinb etc )

we have AC is 33 and sin b (60 degrees)is (root of 3/2) and AB is unknown and sin c ( 63 degrees )

after reform AB = (33 * sin (63) ) / sin 60 = 33.95m


extra info .

you use law of sine if you hace 2 ( or more ) angles and a side or 2 sides ( or more ) and one angles


you use the law of cos when having two side and an angles THAT IS IN BETWEEN THEM