Question

Solve for missing sides:
b
60°
a
5√3

Answer 1

b = 5, a = 10.

Explanation:

sin 60 = 5√3 / a

√3/2 = 5√3 / a

a = 5√3 / √3/2

= 5√3 * 2/ √3

= 10

By pythagoras:

10^2 = (5√3)^ 2 + b^2

100 = 75 + b^2

b^2 = 25

b = 5