SOLUTION: I have a math problem where pi=22/7 and i have to find the area of a circle using pi with a diameter of 3 1/2.
So I know the formula A=pi times r squared.
but i cant figure out t
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Question 314568: I have a math problem where pi=22/7 and i have to find the area of a circle using pi with a diameter of 3 1/2.
So I know the formula A=pi times r squared.
but i cant figure out the correct answer to this problem. Can you explain?
Found 2 solutions by Fombitz, nerdybill:
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Change 3 1/2 to a fraction.
The radius is (1/2) of the diameter.
Then the area,
or if you want to get back to a mixed number,
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
I have a math problem where pi=22/7 and i have to find the area of a circle using pi with a diameter of 3 1/2
.
Of course, radius(r) is simply half the diameter so
r = (1/2)(3.5) = 1.75 or 1 3/4 or 7/4
.
Plug the given info into:
square units
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