engineering mathematics MCQ #190

The angle of elevation of the top of a flag post from a point on the ground is 30°. If the distance from the point to the flag post is 20 m, find the height of the flag post.

engineering mathematics MCQ #190

  1. Question 1

    Q1. The angle of elevation of the top of a flag post from a point on the ground is 30°. If the distance from the point to the flag post is 20 m, find the height of the flag post.

    • A) 20/√3 m
    • B) 20√3 m
    • C) 10√3 m
    • D) 10/√3 m

    Answer: 20/√3 m

    Explanation: Using tan(30°) = height / 20, we get 1/√3 = height / 20, so height = 20/√3 m.