Question

) Find the slant height , curved sueface and the toptal surface area of a

cone , if its base radius is 12 cm and height is 16 cm .​

Answer 1

Step-by-step explanation:

OA=16cm,AB=l

length= 16X2+12X2

= 256 + 144

=20cm

curved surface Area,

C.S.A=πrl=3.14×12×20=753.6cm

2

Total surface Area,

T.S.A=πr(r+l)=3.14×12[12+20]=1205.76cm

2