Question

A cone has a base diameter of 20 mm and the slant height is 30 mm. What is the surface area
in mm??
(a)
200*
(b) 400
(6) 100
(a)
500
Ta​

Answer 1

Radius, r =10mm

Slant height, l =30mm

CSA=pi*r*l

=22/7*10*30=942m^2