Posted by **Anonymous** on Tuesday, October 11, 2011 at 6:48pm.

PERIMETER OF A RECTANGLE IS 32CM AND AREA IS 55CM FIND THE LENGHT.

- trig -
**Reiny**, Tuesday, October 11, 2011 at 7:23pm
l+w = 16 --> l=16-w

lw=55

w(16-w)=55

16w - w^2=55

w^2-16w+55=0

(w-5)(w-11)=0w=5 or w=11

we have a symmetric solution, that is,

if w=5 , then l=11

if w=11, then l = 5

the rectangle is 5 by 11

usually the longer side is called the length

so the length is 11 cm

## Answer this Question

## Related Questions

- Math - Perimeter of rectangle = 2*l+b. Area = l*b. If l = 1m, b = 55cm. Find ...
- Mathematics-please help quick!! - The lenght of a rectangle is 10cm greater than...
- Mathematics-please help quick!! - The lenght of a rectangle is 10cm greater than...
- basic geometric - 10. a rectangle has width the same as a side of a square whose...
- Geometry/Trig - Hello, I would appreciate it if... 1. If you could give me ...
- 2nd grade math - If you have a rectangle with 24 square units 3 lines down 8 ...
- Math - The first question is this: Helen designs a rectangle with an area of 225...
- math - the lenght of a rectangle is one meter more more than two-thirds of the ...
- area, perimeter - the perimeter of rectangle y is equal to its area. rectangle z...
- math - one of the two numbers that can be both the perimeter and the area of the...