Question

The perimeter of a square having an area 25 cm^{2} will be

• A. 5cm
• B. 10cm
• C. 20cm
• D. 40cm

Answer 1

The correct option is C 20cm

The perimeter of a square of area 16 $c{m}^2$ is ___________________

Solution

The area of a square is given by side $\times$ side

Therefore Side $\times$ side = 25

Side = 5 cm ( since we have 5 $\times$ 5 = 25; When we look at the factors of 16 ,

25 = 25 $\times$ 1

25 = 5 $\times$ 5 ; since the sides have to be equal , it has to be 5 $\times$ 5 = 25)

The perimeter of the square = 4 $\times$ 5 = 20 cm