Question

3. In 25 minutes a train travels 20 km. How far will
it travel in 5 minutes ?

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Answer 1

Answer:

Find the lateral surface area and total surface area of a cuboid of length 80 cm, breadth 40 cm and height 20 cm.

ANSWER

l=80cm,b=40cm,h=20cm

Therefore,

TSA = 2(lb+bh+hl)

=2(80×40+40×20+80×20)=11200 cm²

LSA = 2(l+b)h=2(80+40)20=4800 cm²

I hope this will be help you.