<PRE><B>Question 936340</B>
your classmate confuses the formulas for the circumference and the area of a circle. he knows that one of the formulas is pi r squared how can he use the units for circumference and area to help him remember which formula to use
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Area is always a squared measure:: pi*r^2 is a squared measure
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circumference is a linear measure:: pi*d is a 1st degree measure
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Cheers,
Stan H.
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