Answers

2016-03-27T20:02:37+05:30
2 \pi r = 440
2.pi.r = 440
2.22/7.r= 440
r = 440 x 7 / 22 x 2
r = 70
1 5 1
2016-03-27T20:30:10+05:30
Circumference=2πr... But C is given to be 440cm........so....2πr= 440cm.........2×22/7×r=440 cm.......... r= 440×7/22×2...........,3080/44=r..... Therefore r= 70 cm......
2 5 2