If the similar figures shown below are right triangles, what is the value of x?

12

Step-by-step explanation:

Following the Pythagorean theorem, c^2 - b^2 = a^2.

If they are similar, b will be 16 and c will be 20.

20^2 - 16^2 = 144

144 = 12^2 so x=12

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

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