SOLUTION: Can anyone please help me solve these two problems. I am really confused. And not sure what I am doing. PLEAS HELP. 1)The area of a square is 25 square meters. What is it's

Question 112387: Can anyone please help me solve these two problems. I am really confused. And not sure what I am doing. PLEAS HELP.

1)The area of a square is 25 square meters. What is it's perimeter?
2) A square support unit in a television is made with a scale measuring 3 centimeters. A new model being deigned for the upcoming year will have a larger square with a side measuring 3.2 centimeters. By how much will the area of the square be increased?
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
1) Think about the formula for finding the area of a square whose side is S:
But in this problem, you are told that the area, A, = 25 square meters, so substitute 25 for A and...
Take the square root of both sides.

So the length of one side of the square is 5 meters. The perimeter of a square is given by:
and since S = 5, substitute 5 for S and...

meters.
2) The original area is:

square centimeters.
The new area will be:

square centimeters.
The increase in the area will be the difference of these two:
= square centimeters.

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