Question

volume of a right circular cone is 78848cm3 it's diameter and slant height is 56cm and 100cm respectively find its total surface area​

Answer 1

Step-by-step explanation:

given that

volume equals 78848 cm cube

diameter = 56cm

radius will be 28 CM

now as we know

volume of a cone = πr²h

=7848 equals 22 by 7 into 28 into 28 8 into h

therefore height = 32cm

now as we know

total surface area =πr(r+l)

=22 by 7 into 28 (28+√32²+28²)

=3741. 811cm square