How to find surface area

The total area occupied by the surfaces of an object is called its surface area.

The surface area is classified into two categories: 

– Lateral surface area or Curved surface area – Total surface area

Total surface area for cube

6a^2

where a is the length of each side

Total surface area for cuboid

2 (lw + wh + lh) 

where l, w, and h are the length, width, and height of the cuboid

Total surface area for cone

πr(r + l)

where r is the radius and l is the slant height of the cone

Total surface area for Cylinder 

2πr(r + h)

where r is the radius and h is the height of the cylinder

Total surface area for Sphere 

4πr2

where r is the radius of the sphere

want to know more study tips like this?