This document defines and provides examples of various geometric terms: - Lines can be line segments (with two endpoints) or rays (with one endpoint extending in one direction). Intersecting lines cross, while parallel lines never cross and remain the same distance apart. - Perpendicular lines intersect to form four right angles. Angles can be right (90 degrees), acute (<90 degrees), or obtuse (>90 degrees). - Complementary angles sum to 90 degrees. Supplementary angles sum to 180 degrees. - Vertical opposite angles formed by intersecting lines are always equal. Adjacent angles share a common vertex and one common side but have arms on opposite sides of that common side.

1. By Dhairya Kapur

2. Points
An exact position or
location.

3. Lines and Rays
LINE: A straight path extending in both
direction with no endpoints.
LINE SEGMENT: A part of a line that
include two points, called endpoints,
and all the points between them.

4. About rays
RAYS:A part of line, with one end point, that
continues without end in one direction.

5. More about lines
INTERSECTING LINES: Lines that cross.
PARALLEL LINES: Lines that never cross
and always the same distance apart.

6. Perpendicular lines
Two that intersect to form four right angles.

7. The figure formed when two rays share
the same end point
Right Angle: An angle that forms
Square corner.
Acute Angle: An angle less than a
right angle.
Obtuse Angle: An angle greater
Than a right angle.

8. Complementary Angles
Two angles called complementary angles if
the sum of their degree measurements
equal 90 degrees.
Example:
58
32
These two angles can be 58
Pasted together to form 32
Right angle.

9. Supplementary Angles
Two angles are called supplementary angles
if the sum of their degree measurements
equal 180 degree.
Example:
139 41
These two angles can be pasted 139 41
Together to form straight line

10. Vertical opposite angles
Two angles formed by two intersecting lines
having no common arm are called vertical
opposite angles.
Example:
If two lines intersect then vertical opposite
Angle are always equal.

11. Adjacent angles
Two angles in a plane are called adjacent
angles, if
 They have a common vertex
 They have a common arm, and
 Their other arms lie on the opposite sides
of the common arm.
Example:
A d
s e

12. Thanks
for
watching my
presentation.