Question

Find the value of x in the diagram below

Answer 1

Find the length of side CD and then subtract from 7 to get side FC. Using the pythagorean theorem, you can find x.

5² - 3² = 16²

square root of 16 = 4

7 - 4 = 3

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3² + 3² = 18²

square root of 18 = 4.242640687

round as you wish.