Question

Find the lenght of side BC. Give your answer to 1 decimal place

Answer 1

Answer:

BC ≈ 11.9 cm

Using the sine ratio in the right triangle

sin58° = \frac{opposite}{hypotenuse}hypotenuseopposite = \frac{BC}{AC}ACBC = \frac{BC}{14}14BC

Multiply both sides by 14

14 × sin58° = BC, thus

BC ≈ 11.9 cm ( to 1 dec. place )

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