Question

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

Answer 1

area of Square=80*80=6400 and it is equal to area of rectangle =20*x=6400 ,x=6400/20=320

Answer 2

$\huge \underline \mathbb {SOLUTION:-}$

AnswEr:

• Length of the rectangle = 320 cm.

Given:

• A rectangle has its area equal to that of a square of side 80 cm.
• The breadth of the rectangle is 20 cm.

Need To Find:

• The length of the rectangle = ?

ExPlanation:

• Side of the square = 80 cm [Given]

Formula used here:

• Area of square = Side ×Side

Putting the values according to the given formula:

Area of the square = 80 × 80

Area of the square = 6400 cm²

• Hence, the area of the square is 6400 Cm².

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• The Breadth of the rectangle = 20 cm [Given]

Formula used here:

• Area of the rectangle = Area of the square = 6400 cm²

Putting the values according to the given formula:

Length of the rectangle = Area/Breadth

We get:

• Length of the rectangle = 6400/20 = 320 cm

Hence,

• Length of the rectangle is 320 cm.

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Additional Information:

What is Area?

• The measure of the surface enclosed by a closed figure is called area.

• Area of rectangle = Length × Breadth
• Area of a square = Side × Side

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