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Home > CCG > Chapter 4 > Lesson 4.1.2 > Problem 4-20

4-20.

Find the area and perimeter of the triangle at right.  

A triangle in centimeters with left side, 9, and right side, 6.  Two internal triangles are created by a line segment of 3 cm drawn from the upper vertex perpendicular to the base at right angles.

Use Pythagorean Theorem to find the missing leg of each of the smaller triangles.