1.
The circumference of a circle is
meters. Find its radius.
A.
3 m
B.
4 m
C.
6 m
D.
5 m
Hint
2.
Find the area of a semicircle whose radius is 9 inches long.
(Use 3.14 for
.) Round to the nearest square inch.
A.
81 square inches
B.
254 square inches
C.
127 square inches
D.
41 square inches
Hint
3.
A pizza shop offers a 10-inch diameter pizza for $9.99, a 12-inch diameter pizza for $10.99 and a 14-inch diameter pizza for $11.99. Which pizza has the lowest price per square inch?
A.
12-inch
B.
10-inch
C.
14-inch
D.
They are all the same.
Hint
4.
The dome of the Roman Pantheon has a circumference of 134 meters. If the Houston Astrodome has an area about 25.7 times that of the Pantheon, what is the area of the Astrodome?
A.
about 36,700 square meters
B.
about 42,300 square meters
C.
about 51,300 square meters
D.
about 32,500 square meters
Hint
5.
Gabriela purchased 40 feet of fencing to make a circular dog pen. Find the area of the dog pen.
A.
about 90 square feet
B.
about 110 square feet
C.
about 130 square feet
D.
about 140 square feet
Hint