Question

$\huge\color {purple}\boxed{\colorbox{black} { QUESTION♡}}$
The length of a rectangle is four times its width. If the area is 100 m2 what is the length of the rectangle?
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Answer 1

Answer:

The length of a rectangle is four times its width. If the area is 100 m2, what is the length of the rectangle?

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

Answer 2

Answer:

• let the width of rectangle be x
• width = x
• according to the problem length will be 4x
• length = 4x
• area=100m²
• length×width=100
• 4x × x = 100
• 4x²=100
• x²=25
• x=5
• so length of the rectangle will be 20m