Question

find the surface area of a cuboid whose length is 3.2 m ,breadth is 30 dm and height is 250 cm​

Answer 1

total surface area=2lb+2bh+2hl

given that:

l=3.2m. b=30dm=3 m. h=250cm=2.5m

=2x3.2x3+2x3x2.5+2x2.5x3.2

=18.12+15+15.1

=48.13m^2