Question

(i) The side of the square whose perimeter is 20 m.
(a) 80 m
(b) 5 m
(c) 4 m
​

Answer 1

Given:

• Perimeter of square is 20m.

To Find:

• Side of square = ?

Solution:

Let's understand

Here,perimeter of square is given 20m and we have to find side of square.

We know that,

$\Large\sf\green{Side \:Of\:Square={\frac{Perimeter\:of\:square}{4}}}$

According to the question,

Put the values on their place

$\: \: \: \sf \leadsto \: side \: of \: square = \frac{20m}{4} \\ \\ \: \: \: \sf \leadsto \: side \: of \: square = \cancel \frac{20}{4} \\ \\ \: \: \: \sf \leadsto \: side \: of \: square = 5m$

Hence, Side of square is 5m.

Additional Information

• Perimeter of square = 4 × side
• Area of square = (side)^2
• side of square = √area
• Diagonal of a square = √2 × side