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Problem Solving — algebra and arithmetic (GMAT Focus Edition)
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Circles

by jube » Thu Jun 17, 2010 10:30 am
I was wondering if someone could tell me the formulas/concepts you need to know about circles for GMAT?

Should you be knowing the incircle / circumcircle formulaes? What about equation of a circle?

thanks!
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by tpr-becky » Thu Jun 17, 2010 12:47 pm
You really only need circumference, area and the relationship between an arc angle and the arc as well as the arc angle and the area of the piece. Circles are all about finding a HELPFUL radius on the GMAT.
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by jube » Fri Jun 18, 2010 7:54 am
tpr-becky wrote:You really only need circumference, area and the relationship between an arc angle and the arc as well as the arc angle and the area of the piece. Circles are all about finding a HELPFUL radius on the GMAT.
thanks Becky!
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