Four cubes of side 5 cm are joined end to end .find surface area of resultant cuboid
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Answer:
450 cm^2
Step-by-step explanation:
There are 4 cubes so the length becomes 20 cm but both the height or the breadth don't change.
Surface area = 2(l×b+b×h+h×l)
= 2(20×5+5×5+20×5)
= 2(225)
= 450
Surface area = 450 cm^2
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