Representing whole numbers by line segments

Representing whole numbers by triangles

Representing whole numbers by squares and rectangles

Representation of whole numbers on numbers line

From an algebraic expression to give the number of line segments required to make the following pattern and hence find the number of line segments required for 10 houses.

Count the number of line segments in Fig.

Count the number of line segments in Fig.

Represent -7 on number line

Some points are plotted on a plane. Each point is joined with all remaining points by line segments. Find the number of points if the number of line segments are 15.

Represent the numbers on number line: 3/2