Posted by kayle on Thursday, August 5, 2010 at 4:56pm.
a target consists of five concentric circles, each with a radius 1 inch longer than that of the previous circle. calculate the area between the third and fourth circles from the center.

geometry  Ms. Sue, Thursday, August 5, 2010 at 4:58pm
What is the radius of the smallest circle?

geometry  kayle, Thursday, August 5, 2010 at 5:28pm
the radius of the smallest circle is one inch

geometry  Ms. Sue, Thursday, August 5, 2010 at 5:35pm
A = pi * r^2
3rd circle:
A = 3.14 * 9
A = 28.26 sq. inches
4th circle:
A = 3.14 * 16
A = 50.24 sq. in.
50.24  28.26 = ?
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