3 years ago

Can some help me calculate the value of x?

1 answer:

4 0

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

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