radius of a cylinder is 21cm and height is 70 cm.how many spheres can fitted with radius 7 cm?
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0
Answer:
2 spheres in any angle of cylinder
Answered by
1
Answer:
Radius of cylinder = 21 cm
height = 70 cm
Vol. of Cylinder = πr^2h
=(π × 21 × 21 × 70) cm^3
radius of sphere = 7cm
Vol. of sphere = 4/3 π r^3
= ( 4/3 × π × 7 × 7 × 7 ) cm^3
No. of sphere = Vol. of cylinder/ vol. of sphere
= ( π×21×21×70)/(4/3 ×π×7×7×7)
= (3×21×21×70)/( 4×7×7×7)
= 270/4
= 67.5
Hence ,
67 spheres can be fitted in cylinder .
Hope it helps you...
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