Practice Page
Directions: Read carefully. Answers use π= 3.141592654, the full calculator entry on the TI series, and are rounded to the designated instructions.

1.
The diameter of a circular hoola hoop is 36 inches. Find the circumference of the hoop to the nearest tenth of an inch.

Choose:
56.5 inches
113.1 inches
226.2 inches
1017.9 inches
hoolahoop

 

 

2.
A circle has a circumference of 24π.
a) What is the radius of the circle?
Choose:
8
12
16
24

b) What is the area of the circle?
Choose:
24π
36π
144π
576π
circleP

 

 

3.
Skeeter's performance for the talent show will be jumping through a hoop. Skeeter requires a width of 18 inches so his ears to not hit the hoop. Will a hoop with an inner circumference of 39.8 inches be large enough for Skeeter's performance?
Choose:
Yes
No
skeeter

 

 

4.
The center of a circle is located at (5,4). The circle passes through the point (8,4).
a) Find the circumference of the circle in terms of π.
Choose:
3π
6π
9π
36π

b)
Find the area of the circle in terms of π.

Choose:
3π
6π
9π
36π
circle

 

 

5.
A large pizza has a circumference of 72.5 inches.  Which of the perimeters listed below could belong to the smallest square box capable of holding a large pizza?

Choose:
23 inches
24 inches
73 inches
96 inches
pizza

 

 

6.
Jason and Snoopy run 3 laps around a circular track with a diameter of 85 feet. To the nearest foot, how many feet will they have run?

Choose:
267 feet
534 feet
801 feet
1602 feet
track

 

 

7.
The circumference of a circle is 12.4π. Find the area of the circle.
Choose:
24.8π
38.44π
49.6π
153.76π

 

 

8.
An arched window has dimensions as shown at the right. Consider the top of the window to be a semicircle.
a) How much weather stripping is needed to surround the outer edge of the window
(to nearest tenth of foot)?
Choose:
18.0'
19.7'
24.4'
33.8'
PPwindow
 
b) How much plastic covering is needed to cover the window, following the outline of the window?
Choose:
25.2 sq. ft.
42.0 sq. ft.
21.5 sq. ft.
36.7 sq.ft.

 

 

9.
A length of green ivy with shamrocks is to be placed around the outer edge of a clock as decoration for St. Patrick's Day. If the clock has a radius of 9 inches, how many inches, to the nearest inch, of the ivy will need to be purchased?
Choose:

28 inches
29 inches
56 inches
57 inches
ivyclock

 

 

10.
A semicircle has a radius of 12 inches.
a) Find, to the nearest inch, the number of inches around the outside of this red semicircular shaped figure.

Choose:

87 inches
75 inches
62 inches
38 inches
redsemi
b) Find, to the nearest square inch, the area of this red semicircular shaped figure.
Choose:

113 sq.in.
226 sq.in.
342 sq.in.
452 sq.in.

 

 

11.
This is a right triangle inscribed in a circle and the hypotenuse of the triangle is the diameter of the circle.
a) Find the circumference of the circle.

Choose:

2.5π
5π
7π
7.5π
pycircle
b) Find the area of the yellow portion of the circle to the nearest tenth of a square unit.
Choose:

19.6 sq.units
78.5 sq.units
13.6 sq.units
66.5 sq.units


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