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A sail on a yacht is a triangle. In triangle ABC, side AB = 6 m, side BC = 16 m, and the angle ABC = 60°.

Find the area of the triangle, correct to one decimal place (in square metres).

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Worked solution — answer: 41.6

A = ½ab sin C

= ½ × 6 × 16 × sin 60°

= 41.6 m²

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