Question

all the circles ones

Answer 1

If one side of square is 10 cm
Perimeter = 10*4 = 40 cm

Similarly solve all of them

And for Regular Hexagon
Since it has all sides equal
So
Length of one side = Perimeter / 6

Hope It Helps....

Answer 2

1. I) Perimeter of square = 4*10
=40

The perimeter of square is 40cm.

ii) Perimeter of an equilateral triangle=9+9+9

=27cm.

The perimeter of an equilateral triangle is 27cm.