Solve the right triangle.
-A = 11° 17', c = 289 ft, C = 90°
A)B = 79° 42', a = 56.55 ft, b = 279.41 ft
B)B = 78° 42', a = 59.75 ft, b = 284.61 ft
C)B = 78° 43', a = 55.98 ft , b = 282.52 ft
D)B = 78° 43', a = 56.55 ft, b = 283.41 ft

Question

Quizplus · Accepted Answer

Angle B is calculated as 90° - A = 78° 43'. Using the sine rule, a = c * sin(A) = 289 * sin(11° 17') ≈ 56.55 ft, and b = c * cos(A) = 289 * cos(11° 17') ≈ 283.41 ft.

Solve the Right Triangle