different types and parts of an angle

1. Different Types and
Parts of an Angle
Ronjel C. Tolentino BSEd Math 4C

2. What is an Angle?
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.

3. Types of
Angle
1. Acute Angle
Acute Angles- an angle that is
less than 90°

4. 2. Right Angle
Right Angle- an angle that is
90° exactly

5. 3. Obtuse Angle
Obtuse Angle- an angle that is greater
than 90° but less than 180°

6. 4. Straight Angle
Straight Angle- an angle that is
180° exactly

7. 5. Reflex Angle
Reflex Angle- an angle that is greater
than 180°

8. Parts of an Angle

9. The corner point of
an angle is called
the vertex
And the two straight
sides are
called arms
The angle is
the amount of
turn between each
arm.

10. Vertex- typically
means a corner or a
point where lines
meet.
Arm- is any of the
two straight lines
that form the angle

11. Ronjel C. Tolentino
BSEd MATH 4C