engineering mathematics MCQ #168

From the top of a cliff, the angle of depression of the top and bottom of a tower are 45° and 60° respectively. If the height of the tower is 20 m, find the height of the cliff.

engineering mathematics MCQ #168

  1. Question 1

    Q1. From the top of a cliff, the angle of depression of the top and bottom of a tower are 45° and 60° respectively. If the height of the tower is 20 m, find the height of the cliff.

    • A) 47.32 m
    • B) 50 m
    • C) 67.32 m
    • D) 100 m

    Answer: 67.32 m

    Explanation: Using tan 45° and tan 60°, we form equations to find the height of the cliff.