Page 180 - Maths Class 05

Plane

A plane cannot be drawn
The surface of a table and the surface of a book are flat. If
on a piece of paper, as it
a flat surface is extended infinitely in all directions, we get
extends indefinitely in all
a plane. Any flat surface is a part of a plane.
directions.

This is a plane p. The arrows show
P that it can be extended endlessly

in all directions.

The plane is a collection of an infinite number of points. A plane contains an unlimited
number of lines, line segments and rays.

Practice - 13.1
Practice - 13.1
Practice - 13.1
Practice - 13.1
1. Fill in the blanks.
a. A ______________ is a fundamental unit of geometry.
b. A ray has ______________ end point and ______________ definite length.

c. ______________ is the science of understanding shapes and figures.
d. The ______________ is a collection of an infinite number of points.

e. ______________ is usually represented by taking any two points on it.
f. Lines that contain the same point are known as ______________ lines.

2. Draw the following.
a. AB b. CD c. MN d. NO

e. point O f. plane Z
3. Name the figures shown below.
a. A b. A c.
P Q

B

d. e. f.
R S M N X

Mathematics-5 180