Suppose a = 10 and A = 25 degrees.

Question

Note: Triangle may not be drawn to scale.

1. Suppose a = 10 and A = 25 degrees.

Answer 1

tan A = a/b

tan 25 = 10/b

b = 10/tan 25 = 21.45

c = sqrt(a^2 + b^2)

since angle C is a right angle (90 degrees)

B = 180 - 90 - 10 = 80