The difference betweeb circumference and diameter of a circle is 105 cm
kannan896:
What should we find???Is it the radius??
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π= 22/7
2πr - 2r = 105
2r ( 22/7-1) = 105
r ( 22-7/7) = 105/2
r ( 15/7) = 105/2
r(1/7) = 7/2
r = 49/2
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