SOLUTION: 1. the area of a square is 225inches. what is the perimeter of the square? 2. the area of a rectangle is 130 foot. if the width of the rectangle is 10 feet then what is the pe

Algebra ->  Surface-area -> SOLUTION: 1. the area of a square is 225inches. what is the perimeter of the square? 2. the area of a rectangle is 130 foot. if the width of the rectangle is 10 feet then what is the pe      Log On


   



Question 270962: 1. the area of a square is 225inches. what is the perimeter of the square?
2. the area of a rectangle is 130 foot. if the width of the rectangle is 10 feet then what is the perimeter of the rectangle?

Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
the area of a square is
x%5E2=A
the perimeter of a square is
4x=P
_
if A=225 then
x%5E2=225
sqrt%28x%5E2%29=sqrt%28225%29
x=15
_
if x=15 then
4%2815%29=P
highlight%2860=P%29
__________________________
the area of a rectangle is
LW=A
the perimeter of a rectangle is
2L%2B2W=P
_
If A=130 and W=10 then
L10=130
L=13
_
If L=13 and W=10 then
2%2813%29%2B2%2810%29=P
%2826%29%2B%2820%29=P
highlight%2846=P%29