find the circumference of the circles with the folowing radius (take=22/7)
1.)14cm.
2.)28cm
3.)21cm
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Step-by-step explanation:
1. 22/7x14x14=22x7 =154
2. 22/7x28x28= 44x14=616
3. 22/7x21x21=66x21=1386
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