Answers

2016-03-01T22:17:44+05:30
Take my 'n' as pie. circumfrence=2nr
2nr=20
r=20×7/2×22
r=35/11_answer
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2016-03-02T11:19:42+05:30
B= 14 cm
 

Circumference of the cylinder formed = 14cm
 
Circumference = 2πr
       A/Q            2πr = 14 cm
14 cm = 2×22/7×r
14 cm = 44/7 × r
r = 14 × 7/44
  = 2.22 cm

P.S: I have attached the diagrams

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