Question

The length of rectangle is 5 cm less than twice its breadth if parimeter of it is 80 find area
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Answer 1

Answer:

Area of rectangle is 375cm^2

Step-by-step explanation:

Let the perimeter given is in cm unit.

Let the length and breadth of rectangle be l and b respectively.

Then according to the question

l = 2b - 5..........(1)

Given perimeter = 80 cm........(2)

We know that perimeter of rectangle is 2(l + b)........(3)

Equate (2) and (3) we get

2(l + b) = 80 cm

l + b = 40........(4)

solve equation (1) and (4)

We get l = 25 cm and b = 15 cm.

Area of rectangle = l x b = 375 cm^2.

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