Answers

2016-01-12T18:03:55+05:30
CSA = πrl
so,CSA = 22/7 * 7 * 10 = 220 cm²
0
ur ans is wrong slant hieght is given
2016-01-12T18:30:02+05:30
Curved  s.a. = πrl

we are given
slant h (l)  =10
radius (r)  =7
now,
πrl= 22/7 × 7 × 10
7 ,7 get cancel

22 × 10=220







0