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What is the hypotenuse of a right triangle with sides 5 and 8?
A. 8√13
B. 12
C. √89
D. 15
E. 5√4
Correct Answer: C
Explanation/Reference:
Explanation:
Because this is a right triangle, we can use the Pythagorean Theorem which says a2 + b2 = c2, or the squares of the two sides of a right triangle must equal the square of the hypotenuse. Here we have a = 5 and b = 8.
a2 + b2 = c2
52 + 82 = c2
25 + 64 = c2
89 = c2c = √89
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