Answer:
use hupotenuse pythogoream theorem
a^2+b^2= c^2
Explanation:
Use Pythagorean theorem,
Leg1² + leg2² = Hypotenuse²
9² + x² = (√113)²
81 + x² = 113
x² = 113 - 81
x² = 32
x = √32 = √2*2 * 2*2 *2
x = 2*2√2
x=4√2
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