Learn important formulas of Surface Area & Volume in just 2 minutes!

FORMULAS RELATED TO SURFACE AREA AND VOLUME

 

  • CUBOID : Let length = l, breadth = b and height = h units. Then
  1. Volume = (l x b x h) cubic units.
  2. Surface area = 2(lb + b h + l h) sq. units.
  3. Diagonal =under root( 2 + 2 + 2) units

 

  • CUBE : Let each edge of a cube be of length a. Then,
  1. Volume = a3 cubic units.
  2. Surface area = 6a2 sq. units.
  3. Diagonal = under root  of 3a units.

 

  • CYLINDER : Let radius of base = r and Height (or length) = h. Then,
  1. Volume = (r2h) cubic units.
  2. Curved surface area = (2rh) sq. units.
  3. Total surface area = 2r(h + r) sq. units.

 

  • CONE : Let radius of base = r and Height = h. Then,
  1. Slant height, l = h2 + r2 units.
  2. Volume = r2h cubic units.
  3. Curved surface area = (rl) sq. units.
  4. Total surface area = (rl + r2) sq. units.

 

  • SPHERE : Let the radius of the sphere be r. Then,
  1. Volume = r3 cubic units.
  2. Surface area = (4r2) sq. units.

 

  • HEMISPHERE : Let the radius of a hemisphere be r. Then,
  1. Volume = r3 cubic units.
  2. Curved surface area = (2r2) sq. units.
  3. Total surface area = (3r2) sq. units.

 

 

Leave a Reply

Your email address will not be published. Required fields are marked *