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musiclover10045

Use the Pythagorean theorem:

x^2 + 6^2 = √117 ^2

x^2 + 36 = √117 ^2

Simplify"

x^2 + 36 = 117

Subtract 36 from both sides:

x^2 = 81

Square both sides:

X = 9

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Answer:

9

Step-by-step explanation:

Because it is a right triangle you can use Pythagoras theorem

X² + 6² = 117

X² + 36 = 117

X² = 81

X = 9