Different Types Of Angles

Definition of an Angle

An angle is formed when two straight lines or rays meet at a common endpoint. The common point of contact is called the vertex of an angle. The word angle comes from a Latin word named ‘angulus,’ meaning “corner.”

definition of an angle

Definition of a Degree

A degree usually denoted by ° is the unit of measurement for angles in which one full rotation is 360° (degrees).

definition of a degree

Types of Angles

Zero degree Angle

When two lines are in the same direction with a common point and the angle measures as ZERO.

Zero degree Angle

Acute Angle

Angle that measures less than 90o
Acute Angle

Right Angle

Angle that measures exactly 90o

Right Angle​

Obtuse Angle

Angle that measures more than 90° and less than 180°

Obtuse Angle

Straight Angle

Angle that measures exactly 180°

Straight Angle​

Reflex Angle

Angle that measures more than 180° and less than 360°

Reflex Angle

Full Degree Angle

The angle measures 360°, corresponding to the central angle of an entire circle.

Full degree Angle

Adjacent Angle

Two angles that share the same vertex and have a side in common.

Complementary Angle

Two adjacent angles whose measures add up to 90°

Supplementary Angle

Two adjacent angles whose measures add up to 180°

Opposite Angle

When two straight lines intersect each other, it forms two pairs of angles; each angle of each pair is directly opposite to its matching angle.

Download Types of Angles Poster

Types of Angles

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