ASVAB math tests include some questions on geometry. Often these questions will ask you to analyze lines and angles. This takes a little knowledge and some common sense. An angle is really two lines (sometimes called *rays*) that meet up at the same point. Angles are measured in degrees (°). Here are a few examples:

• Angles that measure less than 90° are called *acute angles*. Figures A and B show acute angles.

• Angles that measure greater than 90° are called *obtuse angles*. Figures D and E show obtuse angles.

• A *right angle* measures exactly 90°. Figure C shows a right angle. A right angle is often indicated by ...

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