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soldi70 [24.7K]
3 years ago
13

Someone please help me

Mathematics
1 answer:
olganol [36]3 years ago
8 0

Step-by-step explanation:

<h2>A^2 + B^2 = C^2 </h2>

A and B are the legs of the triangles.

C is the hypotenuse.

12^2 + x^2 = 20^2

144 + x^2 = 400

-144            -144

x^2 = 256

x = 16

The length of the second leg is 16.

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