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WAEC Mathematics 2013 Objective — Question 25

Question 25 of 50 from the West African Examinations Council (WAEC) Mathematics 2013 Objective paper, with the correct answer and a full explanation.

A kite flies on a taut string of length 50m inclined at an angle of 54° to the horizontal ground. The height of the kite above the ground is

Diagram for question 25

A. 50tan36°
B. 50sin54°Correct
C. 50tan54°
D. 50sin36°

Explanation

Height = string length × sin(angle of inclination) = 50 sin54°.

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