Help with Geometry problem

Test Preparation SAT Preparation
1

<p>number 1 on this page.</p>

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2

<p>Recognize that the circumference could be 20.</p>

<p>Hence, 20 = 2R * Pi or R = 10/Pi</p>

<p>To find the area, use R^2 * Pi</p>

<p>(10/Pi)^2 * Pi = 100/Pi</p>

3

<p>Thanks! I accidentally multiplied 20 by Pi instead of dividing it.</p>