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January 30, 2015

January 30, 2015

Posted by **LP** on Friday, November 16, 2012 at 3:26pm.

The radii of the circles have lengths of 3 inches, 7 inches and 9 inches.

The 7 inch radii spacing is shaded.

(To the nearest percent,)

What percent of the target is shaded?

- Math -
**Steve**, Friday, November 16, 2012 at 3:47pmassuming you meant that the region between the 3" circle and the 7" circle is shaded,

(7^2-3^2)/9^2 = (49-9)/81 = 40/81 = 49%

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