Question

Q-6
Solve the following problems.
1) Perimeter of a square is 20 cm, then what will be the area of that
square.​

Answer 1

Answer:

perimeter of square= 4×side

20= 4×side

20/4= side

5

side of square= 5cm.

area of square= side ×side

= 5×5

= 25cm^2

area of square = 25cm ^2.

Answer 2

Given :

• Perimeter of a square is 20 cm.

$\:$

To Find :

• the area of the square.

$\:$

Formula Used :

• $\sf{\fbox{ {Perimeter}_{(Square)} = 4 × side }}$

• $\sf{\fbox{ {Area}_{(Square)} = side × side }}$

$\:$

Solution :

First of all, we have to find the side of the square. Now,

Let the side of the square be x.

➪ $\sf{ Perimeter = side × 4 }$

➪ $\sf{ 20 = x × 4 }$

➪ $\sf{ \large{\cancel{\frac{20}{4}}} \small = x }$

➪ $\sf{ x = 5 }$

Hence, the side of the square is 5cm.

Now, we can easily find out the area of the square by the formula :- Area = side × side.

Let's do it!!

➪ $\sf{Area = side × side}$

➪ $\sf{Area = 5 × 5}$

➪ $\sf{Area = 25}$

Hence, the area of the square is 25cm².