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Circumferences and Areas of Circles


Question Group #1
Directions and/or Common Information: Find the circumference for each circle.


1. 





2. 





3. 





If a circle has a circumference of 7 meters, what is the length of its diameter?
4. 





If a circle has a circumference of 72 inches, what is the length of its radius?
5. 




Question Group #2
Directions and/or Common Information: Find the area of each circle.


1. 





2. 





3. 





Find the diameter of a circle whose area is 88 cm2.
4. 





Mary's neighbor has a pool that she wants to emulate in her own backyard.  The pool is unique because it is a perfect circle and unlike any pool she has seen.  Mary needs to hire a builder, but first she needs to find out the area of her neighbor's pool.  If her neighbor's pool's circumference is 60ft, what is the best possible estimate of the pool's area?
5. 








C Roach

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