Page 681 - Basic College Mathematics with Early Integers

658 C HAPTE R 9 I GEOMETRY

57. A pizza restaurant recently advertised two specials. 58. Find the approximate area of the state of Utah.
The first special was a 12-inch-diameter pizza for
105 mi
$10.The second special was two 8-inch-diameter
pizzas for $9. Determine the better buy. (Hint: First
compare the areas of the pizzas in the two specials 70 mi
and then find a price per square inch for the pizzas
in both specials.)
350 mi
Utah
Utah

270 mi

59. Find the area of a rectangle that measures 2 feet by 60. In your own words, explain why perimeter is
8 inches. Give the area in square feet and in square measured in units and area is measured in square
inches. units. (Hint: See Section 1.6 for an introduction on
the meaning of area.)

61. Find the area of the shaded region. Use the 62. Estimate the cost of a piece of carpet for a
approximation 3.14 for p. rectangular room 10 yards by 15 yards.The cost
of the carpet is $6.50 per square yard.

6 in.

63. The largest pumpkin pie was made for the 100th 64. The largest cereal bowl in the world was made by
anniversary of the Circleville, Ohio, Pumpkin Kellogg’s South Africa in July 2007.The bowl had a
Festival in October 2008.The pie had a diameter of 2.6-meter diameter. Calculate the exact area of the
168 inches. Find the exact area of the top of the pie, circular base of the bowl and an approximation. Use
and an approximation. Use p L 3.14 . (Source: p L 3.14 .(Source: Guinness Book of World Records)
Circleville, Ohio, Pumpkin Festival)

d 2.6 m

Find the area of each figure. If needed, use p L 3.14 and round results to the nearest tenth.

65. Find the skating area. 66. 5 feet

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5 m 7 feet

22 m