3 years ago

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Mathematics

1 answer:

Katyanochek1 [597]3 years ago

4 0

9514 1404 393

Answer:

√7

Step-by-step explanation:

The Pythagorean theorem tells you the square of the hypotenuse is equal to the sum of the squares of the sides. Let x represent the unknown side. Then we have ...

x² +9² = (√88)²

x² +81 = 88

x² = 7 . . . subtract 81; next, take the (positive) square root

x = √7 . . . . the third side

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