Question

the perimeter of a rectangle is 72 cm . The length is 3 times the width. find the area of the rectangle​

Answer 1

Answer:

243 sq. cm

Step-by-step explanation:

Let the width be x, so length would be 3x

perimeter = 2(l+b)

72=2(x+3x)

72=2(4x)

72=8x

x=9

so width=9 and length=27

now area of rectangle = l * b

9 * 27

=243 sq. cm

I hope it will help you .