Question

please help me with this question please help me with this question @Mathematics

Answer 1

I'm thinking that you use sin21.8 = BA/BC to find BC, then you can just use tan to find the angle.

Answer 2

OMG ur great

Answer 3

I hope that's right. Since it's a triangular prism, the triangle on top should be right angled too.

Answer 4

Maybe someone else should check this question just to be sure.

Answer 5

I have answered this for you in your previous posting of the same question :-)