Question

The hight of cone is 16cm and the base radius is 12cm.Find CSA and volume of cone.​

Answer 1

Answer:

height (h)=16cm

radius (r)=12cm

now,

1/3πr2h

1/3×22/7(12×12)16

22/7×12×6

22/7×72

1584/7

226.285714

Answer 2

Answer:

l² = r²+h²

l²=(12 cm)²+(16 cm)²

l²= 144cm²+ 256cm²

l²=400cm²

l=20cm

C.S.A=Pie r l

=22/7×12cm×20cm

=754.28 cm²

Volume of cone =1/3 pie r²h

=1/3×22/7×12cm×12cm×16cm

=22/21×144cm²×16cm

=2413.71cm³