the length, breadth and height of a rectangular solid is 12.5 meters, 10 meters and 8.5 meters respectively. How many marble tiles 15 cm long and 25 cm broad will be required to cover that rectangular solid
Answers
Answer:
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Answer:
we know rectangular solid is cuboid
surface area of cuboid is given by
A=2(lb+bh+hl),
where l= length=12.5m=12.5(100)=1250cm
b=breadth =10m=10(100)=1000cm
h= height =8.5m=8.5(100)=850 cm
so A=2(1250(1000)+1000(850)+850(1250))
A=(1250000+850000+212500)
A=2312500 sq.cm
now area of 1 tile is given by=L×B
where L=length of tile =15cm
B= breadth of tile=25cm
area of 1 tile=a= 15×25=375sq cm
required area=2312500 sq cm
no of tiles =2312500/375=8167