CPM Homework Banner

Home > A2C > Chapter 1 > Lesson 1.2.4 > Problem 1-116


The longer leg of a right triangle is three inches more than three times the length of the shorter leg. The area of the triangle is square inches. Find the perimeter of the triangle.  

Right triangle, labeled as follows: vertical leg, x, horizontal leg, 3, x, plus, 3.

Substitute the value of the area, reorganize, and solve the resulting quadratic equation. Can you use both solutions?

Find the length of the hypotenuse by using the Pythagorean Theorem.

The perimeter is the length of the border of a shape.

hyp inches
perimeter  inches