SOLUTION: I can't figure out this problem please help. 10. find the area inside the square, but outside the circle, given that the radius of the circle is 2 ft. use 3.14 for pie. thanks

Algebra ->  Formulas -> SOLUTION: I can't figure out this problem please help. 10. find the area inside the square, but outside the circle, given that the radius of the circle is 2 ft. use 3.14 for pie. thanks       Log On


   

Question 121465: I can't figure out this problem please help.
10. find the area inside the square, but outside the circle, given that the radius of the circle is 2 ft. use 3.14 for pie.
thanks
Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
I assume the circle in inscribed inside the square (i.e. circle touches each side of the square at exactly 1 point)? If so...
Find the length (s) of one side of the square:
s=2r
s=2%2A2
s=4 ft.
With this information, you can now find the area of the square (A):
A=s%5E2
A=4%5E2
A=16 square ft.
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You are given enough information to find the area of the circle (B):
B=pi%2Ar%5E2
B=3.14%2A2%5E2
B=12.56 square feet.
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Finally, to get the area inside the square but outside the circle, just subtract the area of the circle from the area of the square:
C=A-B
C=16-12.56
highlight%28C=3.44%29
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Good Luck,
tutor_paul@yahoo.com