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#### Albert

##### Well-known member

- Jan 25, 2013

- 1,225

- Thread starter Albert
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- #1

- Jan 25, 2013

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- Nov 29, 2013

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Hello.

[tex]\overline{O \overline{ab}}=6.5-4=2.5[/tex]

[tex]\overline{OA}=\sqrt{(7.5)^2+(2.5)^2}[/tex]

[tex]area=62.5 \pi[/tex]

Regards.

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- #3

- Jan 25, 2013

- 1,225

yes,you answer is correct