Answers Geometry Special Right Triangles — QuizQuestion 11

11

QuizMultiple Choice

Special Right Triangles — Quiz

Question 11 • Geometry

Which triangle is a 30 degrees - 60 degrees - 90 degrees triangle?

Answer

A

Image with description A triangle has side lengths of 5, 10, and 5 square root 3.

B

Image with description A triangle has side lengths of 5, 10, and 10 square root 3.

C

Image with description A triangle has side lengths of 5, 15, and 5 square root 3.

D

Image with description A triangle has side lengths of 10, 15, and 5 square root 3.

Explanation

A 30°-60°-90° triangle has side lengths in the ratio 1 : √3 : 2. In choice A, the lengths are 5, 5√3, and 10, which are 5 times that ratio. The other choices do not have all three side lengths in this ratio.

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