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Basic Math/volume an area problems

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pilipinoromar wrote at 2012-11-07 09:19:54
Hello, Crystal.



First, you need to solve for the volume of the cylinder. The volume of a cylinder is equal to (pi)(r^2)(h), where r is the radius and h is the height of the cylinder. All units must be the same, so I will convert the height to inches. Radius is equal to 1/2 the diameter, so the radius is equal to 1/2(10), or 5 inches.



Therefore, we have Volume = 3.14 x 5 inches^2 x 12 inches.



Volume = 3.14 x 25 inches^2 x 12 inches



Volume = 942 inches^3, or 942 cubic inches.



Since the container is only half full, we need to divide the volume in half. 942 cubic inches/2 = 471 cubic inches.



Answer: Volume = 471 cubic inches.



Hope this helps.by romar macalinao


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