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Mathematics 7 Online
OpenStudy (shaleiah):

Check my answer?

OpenStudy (shaleiah):

37.4

OpenStudy (studygurl14):

what are you finding?

OpenStudy (shaleiah):

The area of a regular figure.

OpenStudy (shaleiah):

Rounded to the nearest tenth

OpenStudy (studygurl14):

k, hold on while I check

OpenStudy (studygurl14):

That's incorrect. I got a much larger number. What method di you use?

OpenStudy (shaleiah):

\[\frac{ 2^{2}(11) }{ 4\tan(\frac{ 180 }{ 11 }) }\]

OpenStudy (studygurl14):

where'd you get that? The method I recommend is 1/2(apothem)(perimeter)

OpenStudy (studygurl14):

I mean, where'd you get the numbers?

OpenStudy (shaleiah):

http://www.mathopenref.com/polygonregulararea.html

OpenStudy (studygurl14):

Okay, well then you didn't plug in correctly because S = 6, not 2

OpenStudy (studygurl14):

And N= 10

OpenStudy (studygurl14):

The formula works...you just didn't plug in the right numbers

OpenStudy (shaleiah):

Ah, that's the problem. In this case, the area I computed is 276.9

OpenStudy (studygurl14):

Yes, but rounded to the nearest tenth, it would be 277.0

OpenStudy (studygurl14):

You good?

OpenStudy (shaleiah):

Yes, Thank you!!

OpenStudy (studygurl14):

anytime :)

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