10

Set 3: Triangles (Advanced)

Explanation

Answer: A

PROBLEM

A right triangle has one leg of length 15 and hypotenuse 25. What is the other leg?

A right triangle has one leg of length 15 and hypotenuse 25. What is the other leg?

A.

20

✓ Correct
B.

21

C.

17

D.

22

Detailed Explanation

Choice A is the best answer. b squared = 25 squared - 15 squared = 625 - 225 = 400. b = 20

Why others are wrong:
B: 21 is incorrect because it does not satisfy the equation.
C: 17 is incorrect because it does not satisfy the equation.
D: 22 is incorrect because it does not satisfy the equation.

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