Answers

2016-03-09T21:41:55+05:30
Given that
in the cone slant height = 35 cm
perimeter of the circle = 132 cm
2πr = 132
r = 132× 7/22×2
r = 21 cm
CSA of the cone  = πrl
= 22/7×21×35
= 2310 cm²
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