Answer:
(d) 10.63
Explanation:
You want the length of the hypotenuse of a right triangle with legs 7 in and 8 in.
Pythagorean theorem
The Pythagorean theorem tell you the relationship between legs a, b, and hypotenuse c of a right triangle is ...
c² = a² +b²
Application
In this figure, this means ...
x² = 7² +8² = 49 +64 = 113
x = √113 ≈ 10.63
The length of x is about 10.63.
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