find the area of the ring between two concentric circles,whose circumference are 88 cm and 132 cm
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Step-by-step explanation:
area of circle is πr²
perimeter is 2πr
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Answer:
the area of the ring between two concentric circle , whose circumference are 88 cm and 132 cm is
A- 780cm2
B- 770 cm2
C- 715 cm2
D- 660cm2
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