### Home > MC2 > Chapter 9 > Lesson 9.3.4 > Problem 9-124

9-124.

To find the hypotenuse, we can use the Pythagorean theorem: *a*^{2} + *b*^{2} = *c*^{2}

If the legs are 3 and 4, how long is the hypotenuse?

After finding the hypotenuse, find the perimeter.

The triangle has a right angle so it is a right triangle.

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