Acute, Right, Obtuse, and Reflex angles

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Definition

Acute Angle: An acute angle measures between 0° and 90°.

Right Angle: The right angle is exactly equal to 90°.

Obtuse Angle: An angle greater than 90° but less than 180° is called an obtuse angle.

Reflex Angle: An angle which is greater than 180° but less than 360° is called a reflex angle.

Notes

Acute, Right, Obtuse, and Reflex angles:

1. An acute angle measures between 0° and 90°.

2. The right angle is exactly equal to 90°.

3. An angle greater than 90° but less than 180° is called an obtuse angle.

4. An angle which is greater than 180° but less than 360° is called a reflex angle.

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Shaalaa.com | How To Classify Whether An Angle Is Right,Acute,Obtuse,Straight Or Reflex? Part-1

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How To Classify Whether An Angle Is Right,Acute,Obtuse,Straight Or Reflex? Part-1 [00:10:52]
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