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McGraw-Hill's Top 50 Skills For A Top Score: ASVAB Reading and Math by Dr. Janet Wall

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Skill 45 Understand the Characteristics of Triangles

A triangle is a figure with three sides and three interior angles. The ASVAB often includes questions about triangles. To answer these questions, you need to be familiar with some characteristics of these geometric figures.

The three interior angles in a triangle always add up to 180°. So in Fig. 1, if ImageCAB measures 20°, the other two angles must add up to 160°.

Image

Figure 1.

Right Triangles. A right triangle is a triangle in which one of the angles measures 90°. Figure 2 shows a right triangle. ...

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