Question

the perimeter of a rectangle is 21 cm. the length is 9.5cm greater than the width. find the width and length of the rectangle

Answer 1

Answer:

The length is 10 cm, and the width is 0.5 cm.

Step-by-step explanation:

First, divide the perimeter by 2 to take off the extra sides.

21 / 2 = 10.5

The total of the sides is 10.5 cm, so now we know:

l + w = 10.5

We know that the length is 9.5 greater than the width, so we can substitute that in for the l.

w + 9.5 + w = 10.5

2w = 1

w = 0.5

The width of the rectangle is 0.5 cm.

10.5 - 0.5 = 10

The length of the rectangle is 10 cm.