Question

The length and breadth of rectangle are in the ratio 3:1. If breadth is 7cm then what is the length of the rectangle ​

Answer 1

Given:-

• The length and breadth of rectangle are in the ratio 3:1.

• Breadth of the rectangle is 7cm.

To Find:-

• Find the length of the rectangle.

Concept:-

• Let's go through the concept first. Form an equation firstly and substitute the given values by taking the unknown numbers and solve it.

Solution:-

Let the length be 3x and breadth be x.

Breadth of the rectangle = 7

x = 7cm

Length = ??

According to the question we have!

⟹ x = 7

Substitute the value of x to derive the length

⟹ 3x

⟹ 3 × 7 = 21

⟹ 21

⟹ 21cm

Hence,

The length of the rectangle is 21cm.

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Answer 2

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