Answers

2014-04-16T05:26:58+05:30
Circumference formulae for circle is 2πr
given r =10cm
so circumference = 2*3.14*10
                         =62.80 cm 
0
2014-04-16T07:51:45+05:30
If radius =10cm
then diameter is =20cm
cir... = 2pi r
2 * 3.14 *10
2* 31.4
62.8 cm.
1 5 1