Evaluate the area of the shaded region, Mathematics

 Using the example provided, Evaluate the area of the shaded region in terms of π.

1690_Evaluate the area of the shaded region.png

a. 264 - 18π

b. 264 - 36π

c. 264 - 12π

d. 18π- 264

b. The area of the shaded region is the area of a rectangle, 22 by 12, minus the area of a circle with a radius of 6. The area of the rectangle is (22)(12) = 264. The area of a circle with radius 6 and a radius of 6, is π(6)2 = 36π. The area of the shaded region is 264 - 36π. If you select a, the formula for area of a circle was incorrect, 1 πr2. If you select c, the formula for area of a circle was incorrect, πd. If you select d, this was the reverse of choice a-area of the circle minus area of the rectangle.

Posted Date: 5/24/2013 3:41:10 AM | Location : United States







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