The area of a square is 45 more than the perimeter. How do you find the length of the side?
1 Answer
Jan 29, 2016
Write an equation to represent the problem.
Explanation:
Assuming c represents side length.
Put everything to one side of the equation and solve.
(c  9)(c+ 5) = 0
c = 9 and 5
Since a negative side length is not possible, the square's side measures 9.
Practice exercises:

A square has an area that measures 12 more than the perimeter. Find the side length.

System of equations: A rectangle has a perimeter of 34 and an area of 70. Find the dimensions of the rectangle.
Good luck!