SOLUTION: very confused please help me There is a rectangle. To the top has n+10, and the right side of it lists n. Find a polynomial for the perimeter and for the area. The pe

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: very confused please help me There is a rectangle. To the top has n+10, and the right side of it lists n. Find a polynomial for the perimeter and for the area. The pe      Log On


   



Question 359598: very confused please help me

There is a rectangle. To the top has n+10, and the right side of it lists n.
Find a polynomial for the perimeter and for the area.

The perimeter is ?? "simplify"
The area is ?? "simplify"
please help

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi,
*Note: Perimeter is the distance "all away around"
For a rectangle, the Perimeter would be the SUM of lengths of ALL four sides
often stated as: P = 2*l + 2*w
.
Rectangle with top and bottom having length (n+10) and the sides each being n
P = (n+10)+ (n+10) + n + n = 4n + 20
or can be written
P = 2(n+10) + 2n = 4n + 20
*Note Area of a Rectangle is l*w
Rectangle with top and bottom lengths of (n+10) and is n units wide
A = (n+10)*n