Question

Find a number which can be represented in the form of a line, a triangle and a rectangle.

Answer 1

The number 10 can be represented in the form of a line, a triangle and a rectangle

• Any counting number can be represnted in form of a line.

• 1 + 2 + 3 + 4 = 10, so 10 is a triangular number.

• 5 $\times 2$ = 10. So, 10 can be represnted in form of a rectangle having 2 rows - 5 columns or 5 rows - 2 columns.

1. 2 rows - 5 columns

2. 5 rows - 2 columns