find the radius of a circle if ;
1st case ) its circumference is 32 cm
2nd case ) its area is 14.3 cm square
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Answer:
case 1
circumference = 32
2pie r = 32
2×22/7 r = 32
44/7 r =32
r = 32×7/44
r = 56/11 cm
case 2
area = 14.3
pie r square = 143/10
22/7 r square = 143/10
r square = 143×7/22×10
r square = 1001/220
r = root1001/220
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