practice set 42
std 7
answer me
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- R = 7
d = 14
c = 2* pie* r
2 ×22/7×7
44
- r = 14
d = 28
c = 14
- r = 98
d = 196
c = 616
- r = 11.55
d = 23.1
c = 72.6
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