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barxatty [35]
2 years ago
14

Find the unknown side length x. Write your answer in simplest radical form

Mathematics
1 answer:
Degger [83]2 years ago
5 0

Answer:

B

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + 30² = 50²

x² + 900 = 2500 ( subtract 900 from both sides )

x² = 1600 ( take the square root of both sides )

x = \sqrt{1600} = 40 → B

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