Question

A rectangle has the area equal
to that of a square of side 80 cm. If
the breadth of rectangle is 20 cm.
find its length.
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Answer 1

Answer:

Hope this helps you...!!

Answer 2

★ Question

A rectangle has the area equal to that of a square of side 80 cm. If the breadth of the rectangle is 20 cm, find its length.

★ Understanding the Question

In this question,We are given that "A rectangle has the Area equal to that of a square of side 80 cm.If the breadth of the rectangle is 20 cm,Find its length."Here,We have to find the Area of a square of side and breadth of rectangle.So Firstly, we will find the area of a square of side 80 cm. So, we know that Area of square side × side According to the question We are given Area of a square of side 80 cm.So,It can be written as 80 × 80 because Area of square is side × side.After Multiplying 80 × 80 we will get 6400 cm².Then,We will Find breadth of rectangle.So,We know that area of rectangle is l × b According to the question we are given that breadth is 20 cm.So,It can be written as L = Area/b then Area is 6400 abd breadth is 20 then we will divide 6400 with 20 and we will get 320 cm.So,the length will be 320 cm.

Now,Let's write it step by step..!!!

★ Solution

→ Side of a square = 80 cm

We know that,

→ Area of a square = side × side

By Substituting the Values

→ Area of a square = 80 × 80 = 6400 cm²

Now,

We know that,

→ Area of rectangle = Area of square = 6400 cm²

Then,

→ Breadth = 20 cm

We know that,

→ Area of rectangle = l × b

→ L = Area/b

→ = 6400/20

→ = 320 cm

∴ Hence, the length of the rectangle is 320 cm.