Monday 17 June 2019
Angles: The definition of angles, and examples of angles.
Type of angle
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Description
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Example (Picture)
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Acute
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It is more than 0° and less than 90°.
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Right angle
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An angle at exactly 90°.
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Full Rotation
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An angle that is exactly 360°.
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Straight angle
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An angle at exactly 180°.
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Obtuse
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An angle that is more than 90° and less than 180°.
|  |
Reflex
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An angle that is more than 180° and less than 360°.
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Complementary angle
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Two angles that add up to 90°.
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Supplementary angle
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Two angles that add up to 180°.
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Explementary angle
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Two angles that add up to 360°.
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