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Circumference and Area of Circles
Contributed by: Miles
(Original author: Harkenrider)
Determine the radius of the circle.
units
If the circumference of the circle is 12π units, 
determine the radius.
?
units
Determine the area of the circle. Use 3.14 for π.
3 feet
feet2
Find the circumference of the circle. 
Leave your answer in terms of π.
8 inches
π
inches
The circumference of the circle shown is 10π feet.Answer the questions related to the circle.
Radius:               feet
Diameter:            feet
Area:              π feet2  
Find the circumference of the circle. Leave your answer in terms of π.
5.5
π
units
Determine the area of the circle. Leave your answer in terms of π.
7 m
π
m2
Determine the area of the semi-circle. 
Use 3.14 for π.
cm2
Determine the perimeter of the semi-circle. Your answer should represent the sum of both the straight and curved edges. Use 3.14 for π.
cm
Determine the area of the base of this cylinder.Use 3.14 for π.
units2
Determine the circumference of the circular base 
of this cylinder. Use 3.14 for π.
units
Find the circumference of the circle. Write your answer in terms of π.
Area is 64π feet2
Circumference is:                 feet
π
Find the area of the circle. Write your answer in terms of π.
Circumference is 24π inches
Area is:                 inches2
π
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