In a 30°–60°–90° triangle, the side opposite the 30° angle is 5 cm. The hypotenuse is
A. \(5\sqrt{3}\) cm
B. 10 cm
C. \(10\sqrt{3}\) cm
D. 2.5 cm
A. \(5\sqrt{3}\) cm
B. 10 cm
C. \(10\sqrt{3}\) cm
D. 2.5 cm
Best answer
Answer: B. 10 cm
The side opposite 30° is half the hypotenuse, so the hypotenuse is \(2 \times 5 = 10\) cm.
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