Waec 2025 Mathematics Question 4

Practice essay / theory question 4 from the 2025 Waec Mathematics examination. This question covers Trigonometry / Angle of Elevation .

Waec 2025 Mathematics Essay / Theory

Topic: Trigonometry / Angle of Elevation

Question 4 WAEC • 2025 • MATHEMATICS • essay

Waec 2025 Mathematics Question 4 diagram

The diagram shows a tower \( T R \) and an observer at \( O \). \(|O R|=84 m\) and the angle of elevation of the top of the tower \( T \) from \( O \) is \( 57^{\circ} \).

Question Parts

( a )

Calculate, correct to three significant figures, the height of the tower.

( b )

The observer at \( O \), moved away from the tower in the same straight line until the angle of elevation of \( T \) is \( 49^{\circ} \). Find, correct to two decimal places, how far the observer moved backwards.

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About This Question

This is Waec 2025 Mathematics Question 4. It is one of the essay questions from the 2025 Waec Mathematics examination.

The question covers Trigonometry / Angle of Elevation .

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