# MATH

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A CIRCULAR COFFEE TABLE HAS A DIAMETER IF 5FT. WHAT WILL THE COST BE TO BE REFINISHED IF THE COMPANY CHARGES \$3.00 PER SQUARE FOOT?

A+=+pi%2Ar%5E2
r+=+2.5
A+=+pi%2A2.5%5E2
A+=+pi%2A6.25
A+=+19.635 ft2
If cost = C
C+=+3%2A19.635

• MATH -

Correct!
Note that the area of a circle can be
either
πr² or πd²/4

Total cost
=πr²*(\$3)
=π(d²/4)*(\$3)

• MATH -

Thank you MathMate,
you're a life saver

• MATH -

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