Question

WORTH 50 POINTS FOR 5 MINS OR LESS ANSWER!

Answer 1

Answer: The length of the rectangle is 14 cm.

The width of the rectangle is 7 cm.

Explanation:

Answer 2

Given:

Length = 2 × width

Perimeter = 42 cm

To find:

Length and width of the rectangle

Solution:

Length = 2 × width

`l =2w`

Perimeter =
`2(l + w)`

`2(l + w)=42`

`2(2w + w)=42` (
`l =2w`)

`2(3w)=42`

`6w=42`

Divide by 6 on both sides.

`$(6w)/(6) =(42)/(6)`

w = 7

Substitute w = 7 in length.

`l =2*7`

l = 14

The length of the rectangle is 14 cm.

The width of the rectangle is 7 cm.