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History behind the term "Angles":
The first concept was used by Eudemus, who regarded an angle as a deviation from a straight line;
the second by Carpus of Antioch, who regarded it as the interval or space between the intersecting lines; Euclid adopted the third concept.
the second by Carpus of Antioch, who regarded it as the interval or space between the intersecting lines; Euclid adopted the third concept.
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Angle:
*An angle can be defined as the figure formed by two rays meeting at a common end point.
* An angle is represented by the symbol '∠' .
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Types of Angles:
* Acute Angle
* Right Angle
* Obtuse Angle
* Straight Angle
*Reflex Angle
*Full Rotation
* Right Angle
* Obtuse Angle
* Straight Angle
*Reflex Angle
*Full Rotation
Acute Angle:
* Less than 90 degrees
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Obtuse Angle:
*angle greater than 90°
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