Question

Find lateral surface area and total surface area of cuboid whose length is 15m breadth is 6m and height 90cm

Answer 1

Answer:

l=15m

b=6m

h=90cm=90/100m=0.9m

Total Surface Area =2(lb+bh+lh)

=2(15×6+6×0.9+0.9×15)

=2(90+5.4+13.5)

=2×108.9

=217.8m^2

C.S.A=2(l+b)h

=2(15+6)0.9

= 2×21×9/10

=21×9/5

=189/5

=37.8