Math

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Need help on this one....
Your town is building a circular ice rink with a diameter of 100 feet. Around the ice rink will be a walkway that is 10 feet wide. What is the approximate area of the walkway?

Thanks...

• Math -

Just subtract the inner circle (the ice) from the whole area (including the walk)

pi(55^2 - 50^2)

• Math -

Your town is building a circular ice rink with a diameter of 100 feet. Around the ice rink will be a walkway that is 10 feet wide. What is the approximate area of the walkway?

• Math -

3,500

• Math -

Three of these methods give the correct area of the figure. Which method does NOT?

• Math -

I verify emma's answer. It is 3,500.

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