9
Answer: ASet 5: Triangles (Intermediate)
Explanation
PROBLEM
Recent studies show that a right triangle has legs of length 15 and 20. What is the length of the hypotenuse?
A right triangle has legs of length 15 and 20. What is the length of the hypotenuse?
A.✓ Correct
25
B.
23
C.
28
D.
27
Detailed Explanation
[Variation 1] Choice A is the best answer. c squared = 15 squared + 20 squared = 225 + 400 = 625. c = 25
Why others are wrong:
B: 23 is incorrect because it does not satisfy the equation.
C: 28 is incorrect because it does not satisfy the equation.
D: 27 is incorrect because it does not satisfy the equation.