Question

Help please!

What are the values of A and B?
6√3
B
B = [ ]°
6
A
A = [?]°

Answer 1

Explanation:

By trigonometry :

cos A = 6/12

cos A = 1/2

A = 60°

and, values of B :

cos B = 6√3/12

cos B = √3/2

B = 30°

Values of A and B are 60° and 30°

Subject : Mathematics

Level : JHS

Chapter : Geometry