Answer:
b = 16
∠A = 36.87°
∠B = 53.13°
Step-by-step explanation:
I assume that the given triangle is a Right Triangle
Therefore, I used Pythagorean Theorem
b = √(c^2 - a^2)
b = √(20^2 - 12^2)
b = √(256)
b = 16
∠A = arcsin (a /c)
= arcsin ( 12/20)
= arcsin(0.6)
= 36.87°
∠B = arcsin (b/c)
= arcsin (16/20)
=arcsin (0.8)
= 53.13°
