Surface Area & Volume Part 5 (Class-10th )

Metallic silos are used by farmers for storing grains. Farmer Girdhar has decided to build a new metallic silo to store his harvested grains. It is in the shape of a cylinder mounted by a cone.
Dimensions of the conical part of a silo is as follows: Radius of base = 1.5 m Height = 2 m Dimensions of the cylindrical part of a silo is as follows: Radius = 1.5 m Height = 7 m
Based on the above information answer the following
i) Calculate the slant height of the conical part of one silo.
ii) Find the curved surface area of the conical part of one silo.
iii) (A) Find the cost of metal sheet used to make the curved cylindrical part of 1 silo at the rate of ₹2000 per m2 OR
(iii) (B) Find the total capacity of one silo to store grains