SOLUTION: Hello I need the formula to solve this problem: Find the area and perimeter of a square with a diagonal of 10 inches.

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Question 136119: Hello I need the formula to solve this problem:
Find the area and perimeter
of a square with a diagonal of 10 inches.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
A SQUARE WITH A DIAGONAL IS
X^2+X^2=10^2
2X^2=100
X^2=100/2
X62=50
X=SQRT50
X=7.07 IN. IS THE LENGTH OF THE SIDES OF THE SQUARE.
AREA=7.07^2=50 IN^2.
PERIMETER=4*7.0728.28 IN.