Question

Explain something about concept angle​

Answer 1

the angle that a ray of light or the like, reflected from a surface, makes with a normal to the surface at the point of reflection. Abbreviation: aor.

Answer 2

Step-by-step explanation:

In Euclidean geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.

Type of Angle. Description

Acute Angle. is less than 90°

Right Angle. is 90° exactly

Obtuse Angle is greater than 90° but less than 180°

Straight Angle. is 180° exactly

measurement

• Angles can be either straight, right, acute or obtuse.
• An angle is a fraction of a circle where the whole circle is 360°.
• A straight angle is the same as half the circle and is 180° whereas a right angle is a quarter of a circle and is 90°.
• You measure the size of an angle with a protractor.

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