Answer:
25, I believe
Explanation:
Given a=7 and b=24,
c = 25
25
a² + b² = c², by Pythagoras
In this case 'x' is the 'c' for hypotenuse length
7² + 24² = x²
49 + 576 = x²
625 = x²
√625 = x
25 = x
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