Posted by **jay** on Tuesday, November 15, 2011 at 10:10pm.

The width of a rectangle is 6 cm less than its length. If the area of the rectangle is 135 square cm, find the dimensions. Then find the perimeter of the rectangle.

- geometry -
**Bosnian**, Tuesday, November 15, 2011 at 10:35pm
W = Width

L = Length

A = Area

W = L - 6

A = W * L

135 =( L - 6 ) * L

135 = L ^ 2 - 6 L

The exact solution are :

L = - 9 cm

and

L = 15 cm

The length can't be negative so:

L = 15 cm

W = L - 6

W = 15 - 6 = 9 cm

A = W * L = 15 * 9 = 135 cm ^ 2

P. S.

If you don't know how to solve equation:

135 = L ^ 2 - 6 L

Go on:

wolframalpha dot com

When page be open in rectangle type:

solve 135 = L ^ 2 - 6 L

and click option =

After few seconds when you see result click option:

Show steps

- geometry -
**Anonymous**, Thursday, June 14, 2012 at 12:10pm
perimeter of a rectangle with length 6.6m and width 4.5

## Answer This Question

## Related Questions

- basic geometry - A rectangle has width the same asa a side of a square whose ...
- basic geometric - 10. a rectangle has width the same as a side of a square whose...
- maths - the length of a rectangle is 3 less than 5 times its width. Write a ...
- Algebra/geometry - a rectangle has a width of 4 cm less than it's length. if a ...
- Math - The first question is this: Helen designs a rectangle with an area of 225...
- Math - Find the Maximum area for the given perimeter of a rectangle. State the ...
- math - the length of a rectangle is 5 ft more than twice the width. a)if x ...
- Algebra 2 - The perimeter of a rectangle is 122m. The length of the rectangle is...
- MATH0098 - The perimeter of a rectangle is 58yd , and the area of the rectangle ...
- algebra - A rectangle has a length that is 2 less than 3 times the width. If the...

More Related Questions