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


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.Find the area and perimeter of the triangle at right.  

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