Question

A rectangle is 3 times as long as it is wide. The perimeter is 60 cm. Find the dimensions of the rectangle. Round to the nearest tenth if necessary.

Answer 1

Answer:

Length = 7.5 , Width = 22.5 units .

Step-by-step explanation:

Given : A rectangle is 3 times as long as it is wide. The perimeter is 60 cm.

To find :  Find the dimensions of the rectangle. Round to the nearest tenth if necessary.

Solution : We have given

Let the width of rectangle = x .

According to question

Length of rectangle  = 3x

Perimeter of rectangle = 2 (length  + width )

Plug the values

60 = 2 ( x + 3x  ) .

60 = 2 ( 4x ) .

60 = 8x .

On dividing both sides by 8.

x  = 7 .5

Length = 7.5 units

width = 3x = 7.5 *3 = 22.5 units

Therefore, Length = 7.5 , Width = 22.5 units .

Answer 2

length = 3x

width = x

2(3x) + 2x = 60

6x + 2x = 60

8x = 60

x = 7.5

length = 3 * 7.5 = 22.5

width = 7.5