Find the perimeter of the right triangle.

So before we can find the perimeter, we need to find the hypotenuse. Since this is a right triangle, we can use the pythagorean theorem. The equation for that is , in which a and b are the legs of the triangle and c is the hypotenuse.

With this info, we can form our equation:

Firstly, solve the exponents:

Next, combine everything on the left side:

Next, square root both sides, and your hypotenuse will be 15 = c.

Now that we have all the triangle side lengths, just add everything up:

In short, the perimeter is 36 inches.

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explanation:

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