2. Find the cost of digging a cuboidal pit 8m long , 6m broad and 3m deep at
the rate of Rs30 per m2
.
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Required data,
Length of the cuboidal pit =8m
breadth of the cuboidal pit=6m
height of the cuboidal pit=3m
To solve the sum we use the formula of volume of cuboid
Formula of volume of cuboid=length ×breadth×height
volume of the cuboidal pit=l×b×h
=8×6×3 m³
=144m³
to dig the cuboidal pit cost in 1 m³ is 30 ruppes
To dig the cuboidal pit cost in 144m³ is 144×30 ruppes
=4320 ruppes
cuboid is a type of geometric diagram who has 3 dimensions so it is called a 3-D diagram
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