Question

In field,dry fodder for the cattle is heaped in a conical shape. The height of the cone is 2.1m and diameter of base is 7.2m. Find the volume of the fodder. If it is to be covered by polythin in rainy season then how much minimum polythin sheet is needed?​

Answer 1

Answer:

Volume of fodder = 28.512 m³

polythene sheet required = 47.16 m²

Step-by-step explanation:

volume of cone= πr²h/3

                         = 3.14 × 3.6² × 2.1

                         =28.512 m³

polythene required = CSA of cone

                                = πr√(r² + h²)

                                =3.14 × 3.6 × √(3.6² + 2.1²)

                                =47.16 m²