Question

the lengt of the rectangle is 4 times its width . if the perimeter of the rectangle is 80 m. find the the length and breadth ​

Answer 1

Let the width be “b”
Length = 4*b = 4b
Perimeter = 80 m
2(l + b) = 80
l + b = 40
4b + b = 40
5b = 40
b = 8 m
Therefore , length is 4*8 = 32 m

Answer 2

Answer:

8 meters and 32 meters respectively

Step-by-step explanation:

Let the width of the rectangle be x

From the question, the length of the rectangle is 4 times its width.

Therefore, length = 4x

We know that the perimeter of a rectangle is 2(length + breadth)

Perimeter = 2(4x+x)

80 = 2 * 5x

80 = 10x

x = 80/10

x = 8

Therefore, the width of the rectangle is 8m and the length is 32m (4 * 8)