Question

The length of a rectangle is four times its width.If the perimeter is 50cm,then the length of the rectangle is

Answer 1

Answer:

If the length of a rectangle is four times its width, and the perimeter of the rectangle is 70, what is its area?

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Let the width of the rectangle is x units

Thus the length of the rectangle = 4x units

We know Perimeter = 2 (length + width)

Perimeter = 2 (4x + x)

Perimeter = 2 (5x)

Perimeter = 10x

10x = 70 units

10x = 70

x = 70/10

x = 7 units

Thus the width of the rectangle is 7 units

Length of the rectangle 4x = 4 × 7 = 28 units

Area of rectangle = length × width

Area of rectangle = 28 × 7 = 196 sq. units

Answer : the area of the rectangle is 196 sq. units

Step-by-step explanation:

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