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Earn +20 ptsQ: Why is it important to know the area of a circle?
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What is the formula of finding the area of a circle?
Pi * R squared, where R is the radius of the circle in question
How do you find the circumfrence of a circle when you have the area?
Divide the area by pi then square root your answer which will give the radius of the circle and use 2*pi*radius to find the circumference.
Why does the formula for area of a circle work?
It says so in the formula
Do you round your answer when you find the area of a circle?
You would have to round since area will not be able to be represented without rounding.
How many square inches are there in a 1 inch circle?
Assuming that 1inch is your diameter, your radius is, of course, 0.5. Since the area of a circle is expressed asA=(pi)r2simply plug in the radius to this equation. You will get your area to be pi*0.25in2, which is roughly equal to 0.78539inches2.
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