The area of each of the two circles is π r 2 and the area of the rectangle is 2 π r × h. The surface area of a cylinder is the area of each of its faces added together.

A cylinder is a 3D shape with a circular cross-section and a curved surface. It has no straight edges. To find the volume or surface area of a cylinder, calculate it in the same way you would a prism.

∴Total surface area of sphere = 4 πr2 Question. 2 A solid cylinder of radius r and height h is placed over other cylinder of same height and radius.

NCERT Solutions Class 10 Chapter 12 Maths: Surface Areas and Volumes is the second chapter of Unit-6 Mensuration of the NCERT Class 10 Maths textbook. This unit’s weightage is 10. Thus, the ...

Frieda Zames, Surface Area and the Cylinder Area Paradox, The Two-Year College Mathematics Journal, Vol. 8, No. 4 (Sep., 1977), pp. 207-211 ...