Question

Surface area chapter ke sare formule is pr likh do

Answer 1

CUBOIDLet length = l, breadth = b and height = h units. ThenVolume = (l x b x h) cubic units.Surface area = 2(lb + bh + lh) sq. units.Diagonal = l2 + b2 + h2 units.CUBELet each edge of a cube be of length a. Then,Volume = a3 cubic units.Surface area = 6a2 sq. units.Diagonal = 3a units.CYLINDERLet radius of base = r and Height (or length) = h. Then,Volume = (r2h) cubic units.Curved surface area = (2rh) sq. units.Total surface area = 2r(h + r) sq. units.CONELet radius of base = r and Height = h. Then,Slant height, l = h2 + r2 units.Volume = r2h cubic units.Curved surface area = (rl) sq. units.Total surface area = (rl + r2) sq. units.SPHERELet the radius of the sphere be r. Then,Volume = r3 cubic units.Surface area = (4r2) sq. units.HEMISPHERELet the radius of a hemisphere be r. Then,Volume = r3 cubic units.Curved surface area = (2r2) sq. units.Total surface area = (3r2) sq. units.Note: 1 litre = 1000 cm3.

Answer 2

here are the formula of the chapter surface area and volume..