Class-6 - Maths - Chapter-4 - Basic Geometrical Ideas

Simplest of all geometrical figures which has no size but has position is

• line

• line segment

• point

• space

A set of points which extend infinitely in both directions is called

• line

• place

• line segment

• point

A set of points which is a part of line with two end points is

• line

• line segment

• ray

• point

A set of points with one end point and can be extended in one direction is

• line segment

• line

• ray

• none

A line PQ is symbolically written as

•  $\overline{PQ}$  

•  $\overleftarrow{\ P}\overrightarrow{Q\ }$  

•  $PQ$  

•  $\overrightarrow{PQ}$  

A line segment AB is symbolically written as

• $\overline{AB}$

• $\overleftarrow{\ A}\overrightarrow{B\ }$

• $\overrightarrow{\ A}B$

• $AB$

A ray OP is symbolically written as

• $\overline{OP}$

• $\overleftarrow{\ O}\overrightarrow{P\ }$

• $\overrightarrow{OP}$

• $OP$

Points are represented by

• numerals

• capital letters of alphabet

• low case letters of alphabet

• none

Number of end points a line segment has

• three

• none

• two

• one

Number of end points a ray has

• three

• none

• two

• one