Question

Perimeter of a rectangle is 42cm and it area 20m² a) Find the sum of length and Breadth
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Answer 1

21 cm

Step-by-step explanation:

QUESTION :-

Perimeter of a rectangle is 42 cm and it's area is 20 cm²

a) Find the sum of length and breadth

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SOLUTION :-

We know that,

Perimeter of rectangle = 2(l + b)

[l = length , b = breadth]

So, Here,

Perimeter = 42 cm

=> 2(l + b) = 42 cm

=> l + b = 42/2 cm

=> l + b = 21 cm

Hence,

The sum of length and breadth is 21 cm.

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Hope it helps.

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