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JAMB Mathematics 2021 Paper

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Question : 38

Total: 40

X is due east point of y on a coast. Z is another point on the coast but 6.0km due south of Y. If the distance ZX is 12km, calculate the bearing of Z from X

240°
150°
60°
270°

Solution:

Sinθ = $\frac{6}{12}$

Sinθ = $\frac{1}{2}$

θ = Sin $^{0.5}$

θ = 30°

Bearing of Z from X, (270 - 30)° = 240°

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