[" 20.The outer diameter of a spherical shell is "12cm" and its inner diameter "],[" is "8cm" .Find the volume of metal contained in the shell.Also,find its "],[" outer surface area."]

The outer diameter of a spherical shell is 12 cm and its inner diameter is 8 cm. Find the volume of metal contained in the shell. Also, find its outer surface area.

The outer diameter of a spheircal shell is 10 cm and the inner diameter is 9 cm. find the volume of the metal contained in the shell.

The outer radius of a spherical container is 5cm and the thickness of the container is 2 cm.Find the volume of the metal content of the shell.

The curved surface area of a cylinder is 1210 cm^(2) and its diameter is 20 cm. Find its height and volume

The surface area of a sphere is 5544 cm^2 . Find its diameter (in cm).

A metal pipe is "77cm" long.The inner diameter of the cross-section is "6cm" and the outer diameter is "7cm" .Find (a) Its inner curved surface area (b) Its outer surface area (c) Its volume