Question

The length of a rectangle is three times it's width, the perimeter of the rectangle is 72cm. What is the length?

Answer 1

Step-by-step explanation:

because the length is 3 times the width, the length is 3x. and, because the length is 3 times the width, the length is 27 cm.

Answer 2

Step-by-step explanation:

in this question

length of rectangle is three time its width means

b=3l

perimeter of rectangle =72cm

length = ?

perimeter of a rectangle = 2 ( length+breadth)

72cm= 2 ( l + 3l )

72cm= 2l + 6l

72cm= 8l

72cm/8 = l

9cm = l. ( l = length )

Hence length = 9cm