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Can some help me calculate the value of x?

Can some help me calculate the value of x?-example-1

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Use the Pythagorean theorem to get the length PQ. Since ∆PQT is a right triangle, we have

PQ² + 15² = 25² ==> PQ = √(25² - 15²) = √400 = 20

Use the theorem again to get the length x :

x ² + 12² = PQ² ==> x = √(20² - 12²) = √256 = 16

User RafazZ
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