How to find the area and perimeter of a rectangle? | TIRLA ACADEMY

How to find the area and perimeter of a rectangle?

To find the area and perimeter of a rectangle we need to know the values of the length and width of that rectangle and put these values in the formula of area and perimeter of a rectangle.

Area of Rectangle = Length✕Width
And the perimeter of the Rectangle = 2✕(Length+Width)

Let us take an example:

If the length and width of a rectangle are 20cm and 10cm long respectively. So find its area and perimeter.
Solve:
Area of a rectangle = L✕W
= L✕W
= 20cm✕10cm
= 200 sq. cm
Perimeter of a rectangle = 2✕(L+W)
= 2✕(L+W)
= 2✕(20cm+10cm)
= 2✕30
= 60 cm.