From a point on level ground 150 feet from the base of a building, the angle of elevation to the top of the building is 32°. To the nearest foot, what is the height of the building? (tan 32° ≈ 0.625, sin 32° ≈ 0.530)
A80 feet
B94 feet
C240 feet
D282 feet
Explanation
Set up tan 32° = height / 150. Solve: height = 150 × tan 32° = 150 × 0.625 = 93.75 ≈ 94 ft. Choice A uses sin instead of tan (incorrect ratio). C divides instead of multiplying. D combines both errors.
지금 바로 연습을 시작하세요!
Free sample questions available. No credit card required.