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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
This is a fantastic bundle which includes everything you need to know about Understanding Angles and Its Measures across 15+ in-depth pages. These are ready-to-use Common core aligned Grade 4 Math worksheets.
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