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## Definition:

In geometry, an angle can be defined as the figure formed by two rays meeting at a common endpoint called vertex. Angle measures the amount of turn of its rays in degrees.

## Summary:

PARTS OF AN ANGLE

- Arms:
- The two rays joining to form an angle are called arms of an angle. Here, WH and WM are the arms of the ∠HWM.

- Vertex:
- The common end point at which the two rays meet to form an angle is called the vertex. Here, the point W is the vertex of ∠HWM.

Angles can be classified in terms of their measurements as

- Acute Angles: angles that are smaller than 90°
- Right Angles: angles that measure exactly 90°
- Obtuse Angles: angles that measure more than 90°
- Straight Angles: angles that measure exactly 180°
- Reflex Angles: angles that measure more than 180°
- Full Rotation: angles that measure exactly 360°

## Understanding Angles and Its Measures Worksheets

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