Posted by **will** on Monday, February 18, 2008 at 5:27pm.

A circular coffee table has a diameter of 5 ft. What will it cost to have the top refinished if the company charges $3 per square foot for the refinishing?

- math -
**Guido**, Monday, February 18, 2008 at 5:50pm
First, find the circumference of the circle with diameter 5 feet.

We use this formula:

C = pi x d, where pi = 3.14 and d = 5 feet

C = 3.14 x 5 feet

C = 15.7 feet

Now multiply 15.7 feet by $3 and you will find how much it will cost to have the top refinished.

Can you finish?

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