Q. 194.3( 6 Votes )

A wooden toy was

Answer :

Given-


Radius of Hemisphere(r) = Radius of Cylinder(r) = 3.5 cm


Height of Cylinder(h) = 10 cm


Volume of Cylinder = π × (r)2× h = (22/7) × (3.5)2× 10


= 385 cm3


Volume of Each Hemisphere = (2/3) × π × (r)3


= (2/3) × (22/7)× (3.5)3


= 89.83 cm3


Thus, Volume of wood used in the toy


= Volume of Cylinder-2 × Volume of Each Hemisphere


= 385-2× 89.83


= 385-179.66


= 205.34 cm3


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