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Chapter 4: Basic Geometric Ideas > Exercise 4.1

Exercise 4.1

(1) Join the points given below. Name the line segments so formed in the figure.

(i)

By joining the line segments, a is formed.

The line segments are , , (Enter the namings in alphabetical order)

(ii)

By joining the line segments, a is formed.

The line segments are , , , , . (Enter the namings in alphabetical order)

(2)Name the following from the figure

(i)

(i) Any five points

Five points are point , point , point , point and point (Enter the namings in alphabetical order)

(ii)

(ii) Any five line segments

The five line segments are , , , and . (Enter the namings in alphabetical order with the first four being sides and lastly, one diagonal)

(iii)

(iii) Any Three rays

Three rays are , and .

(iv)

(iv) Any two lines

Line and Line . (Enter the namings in alphabetical order)

(3) How many lines can be drawn through (i) One point (ii) Two distinct points Make a rough figure for your answer.

(i) One point

lines can be drawn through one point.

(ii) Two distinct points

There is only line can be drawn through two distinct points.

(4) Which of the following has a definite length?

Two endpoints
One end point
No dimensions
Definite Length
No end points
Line
Point
Line Segment
Ray

(6) Write ‘True’ or ‘False’

A line has no end points.
Ray is a part of a line.
A line segment has no definite length.
A line segment has only one end point.
We can draw many lines through a point.
True
False

(7) Draw and name :

(i) Line containing point P.

(ii) Line passing through R.