Question

Find LSA and tsa of a cuboid of length 20cm, breadth 10cm and height 5cm​

Answer 1

Step-by-step explanation:

l=20cm

b=10cm

h=5cm

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

=2(20×10+10×5+5×20)

=2(200+50+100)

=2×350

=700cm²

lateral surface area=2(l+b)×h

=2(20+10)×5

=2×30×5

=300cm²