Question

WAP to calculate the surface area of a cylinder with the radius of 8 m. and height of 5 m. (surface area=2rh)

Answer 1

Answer:

In this program, we have a cylinder with the given radius and height. We need to find its Surface area.

A cylinder is a three-dimensional geometrical figure/container with straight parallel sides and two circular cross-sections. So we have three surfaces of the cylinder.

The surface area of two circular cross-sections = 2( Π × r × r )

The surface area of parallel sides = Circumference times the height = 2 Π × r × h

Total Surface Area of Cylinder = 2( Π × r × r ) + 2 Π × r × h = 2 Π (r + h)

Answer 2

Answer:

A=2πrh+2πr2=2·π·8·5+2·π·82≈653.45127m²

Explanation: