
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:



2. 
A circle has a circumference of 24 π.
a) What is the radius of the circle?
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b) What is the area of the circle?
Choose:



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:



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.
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b) Find the area of the circle in terms of π.
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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?
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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?
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7. 
The circumference of a circle is 12.4π. Find the area of the circle.
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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)?
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b) How much plastic covering is needed to cover the window, following the outline of the window?
Choose:


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?
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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.
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b) Find, to the nearest square inch, the area of this red semicircular shaped figure.
Choose:


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:


b) Find the area of the yellow portion of the circle to the nearest tenth of a square unit.
Choose:


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