Mathematics
maddiwalton
11

A right triangle has one angle that measure 23o. The adjacent leg measures 27.6 cm and the hypotenuse measures 30 cm. What is the approximate area of the triangle? Round to the nearest tenth. Area of a triangle =1/2 bh A. 68.7 cm2 B. 161.7 cm2 C. 381.3 cm2 D. 450.0 cm2

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(1) Answers
petranajjar

sin 23° = Opposite/Hypotenuse = b / c 0.39 = b / 30 b = 0.39 · 30 b = 11.722 cm Area of a triangle: A = 1/2 b h A = 1/2 · 11.722 · 27.6 A  ≈ 161.7 cm² Answer: B ) 161.7 cm²

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