a = 9.58

sinA = opposite/hypotenuse

sin15° = a/37

a = 37sin15°

a = (37)(0.2588)

a = 9.58

b = 35.74

cosA = adjacent/hypotenuse

cos15° = b/37

b = 37cos15°

b = (37)(0.9659)

b = 35.74

∠B = 75°

∠B = 90° – ∠A

∠B = 90° – 15°

∠B = 75°

Skip to content
# 2. A= 15\xb0 and c = 37; find a, b, and LB.

Posted on

For students. By students.

a = 9.58

sinA = opposite/hypotenuse

sin15° = a/37

a = 37sin15°

a = (37)(0.2588)

a = 9.58

b = 35.74

cosA = adjacent/hypotenuse

cos15° = b/37

b = 37cos15°

b = (37)(0.9659)

b = 35.74

∠B = 75°

∠B = 90° – ∠A

∠B = 90° – 15°

∠B = 75°