Q1 A metal rod of dimensions 180 cm X 120 cm X 100 cm is melted and recast into cubes. If the length of each cube is 60 cm, How many cubes are formed?
Q2 A wall is to be built using bricks of dimensions 20 cm X 16 cm X 8 cm. How many bricks will be required if the wall is 10m long, 5m high and 64 cm thick
PLEASE HELP
Answers
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Step-by-step explanation:
Volume of cube = Volume of the cuboid
a
3
=100×80×64
a
3
=512000
a=80 cm
Surface area = 6a
2
=38400 cm
2
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