Lines and Angles is a great part of mathematics. If you like the slide show please comment down below positively.

1. LINES AND ANGLES
By: Mohammed Nehan
Grade:7B

2. WHAT ARE ANGLES?
•In planar 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. Angles formed by two rays lie
in a plane, but this plane does not
have to be a Euclidean plane.

3. TYPES OF ANGLES
• In geometry, there are three types
of angles:
•Acute Angles
•Right Angles
•Obtuse Angles
•Straight Angles
•Reflex Angles

4. ACUTE ANGLES
• An acute
angle ("acute"
meaning "sharp") is an
angle smaller than a
right angle (it is less
than 90 degrees).

5. RIGHT ANGLES
•Right Angles are
angles whose
measure is
exactly of 90
degrees.

6. OBTUSE ANGLES
• Obtuse angles are
angles whose
measure is above
90 degrees and less
than 180 degrees.

7. STRAIGHT ANGLES
•Straight angles
are angles whose
measure is
exactly 180
degrees.

8. REFLEX ANGLES
• Reflex angles are
angles whose
measure is more
than 180 degrees
but less than 260
degrees.