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Algebra_2
Chapter 27
Problem 5
Select a different problem
Example:
Find the area of a square.
Suppose you are given the perimeter of a square to be 28 in.
The area of a square is the square of one of the equal sides.
Thus you first need to find the length of one side of the square.
The length of one side of the square is one fourth of the the perimeter.
or : the length of one side
Substituting P = 28 inches into the equation gives
= 7 in.
The area of the square is the square of the length of one side L which is
Substituting L = 7 inches into the area equation gives
= 49in
2
Thus, a square of perimeter P = 28 in has and area
A = 49in2