engineering mathematics MCQ #155

A man observes the angle of elevation of the top of a tower to be 45°. He then walks 20 m towards the tower and finds the angle of elevation to be 60°. What is the height of the tower?

engineering mathematics MCQ #155

  1. Question 1

    Q1. A man observes the angle of elevation of the top of a tower to be 45°. He then walks 20 m towards the tower and finds the angle of elevation to be 60°. What is the height of the tower?

    • A) 20(√3 + 1) m
    • B) 10(√3 + 1) m
    • C) 20(√3 - 1) m
    • D) 10(3 + √3) m

    Answer: 10(3 + √3) m

    Explanation: Using trigonometric relations for the two positions, we can form equations to solve for the height of the tower.