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BECE Mathematics 2023 Objective — Question 48

Question 48 of 120 from the Basic Education Certificate Examination (Junior WAEC) (BECE) Mathematics 2023 Objective paper, with the correct answer and a full explanation.

Calculate ∣CD∣.

Diagram for question 48

A. 20mCorrect
B. 25m
C. 30m
D. 40m
E. 50m

Explanation

BD = AB ÷ tan 30° = 10√3 × √3 = 30m. CD = BD − BC = 30 − 10 = 20m.

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