Question

Find the length of a rectangle whose breadth is 40 m and perimeter is 200 m ?​

Answer 1

Answer:

60 m

Step-by-step explanation:

(Perimeter/2)-Breadth gives length

(200/2)-40 = 60

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Answer 2

Answer:

The length of the rectangle is 60m

Step-by-step explanation:

Given, perimeter, p of a rectangle 2(l+b) = 200m

also, given, breadth, b of the rectangle = 40m

=> 2(l+40) = 200m

=> 2l + 80 = 200m

=> 2l = 200-80 m

=> 2l = 120m

=> l = 120/2 m

=> l = 60m

ie, the length of the rectangle is 60m