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serious [3.7K]
3 years ago
5

What is the value of x? Enter your answer in the box. x =

Mathematics
1 answer:
Assoli18 [71]3 years ago
3 0

Answer:

x = 5

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 + 12² = 13², so

x² + 144 = 169 ( subtract 144 from both sides )

x² = 25 ( take the square root of both sides )

x = \sqrt{25} = 5

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