In a right triangle, angle A measures 20°. The side opposite angle A is 10 centimeters long. Approximately how long is the hypotenuse of the triangle?

Use the sine ratio: sin(20°) = opposite ÷ hypotenuse. Since the opposite side is 10 cm, the hypotenuse is 10 ÷ sin(20°) ≈ 10 ÷ 0.342 ≈ 29.2 cm. Therefore, the hypotenuse is approximately 29.2 centimeters, choice D.

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