Answer:
The area of the rectangle = length × breadth
Letting the width = x m
Then, length = 4x m
A = l × b = 100 m²
4x × x = 100 m²
x² = 100/4 m²; then removing the squares
x = 10/2 m
x = 5 m = width
Length = 20 m
Step-by-step explanation:
Hope it is helpful....
