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# Mesuration: Angles

Neeru S.
07/07/2017 0 0

Angles: a figures is made by two rays (its sides), having one common closing point called its vertex, on a plane. Angles are used to measure the turn movement.

Types of angle: Acute angle, Right angle, Obtuse angle, Straight angle, Reflex angle.

Acute angle is an angle that is less than 90°.

Right angle is an angle that is equal to 90°.

Obtuse angle is an angle greater than 90°.

Straight angle is an angle equals to 180°.

Reflex angle is an angle greater than 180°.

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