Question

Complete the following table.

Shape	Rough figure	Number of lines of symmetry
Equilateral triangle		3
Square	-	-
Rectangle	-	-
Isosceles triangle	-	-
Rhombus	-	-
Circle	-	-

Answer 1

The given table can be completed as follows.

Shape	Rough figure	Number of lines of symmetry
Equilateral triangle		3
Square		4
Rectangle		2
Isosceles triangle		1
Rhombus		2
Circle		Infinite

In case of a circle, there are infinite lines. In the above table, only some lines of symmetry are drawn. More symmetric lines can be similarly drawn for it.