with the help of diagram derive the formulas of area and volume of the following :-
cube, cuboid, cone, cylinder, sphere, hemisphere
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(1)Area of cube = 6side²
volume of cube = side³
(2)Area of cuboid = 2(lb+bh+hl)
volume of cuboid = l×b×h
(3)Area of Cone = πr³ h
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Volume of cone = πr²h
(4)Area of cylinder = πr²
Volume of cylinder = πr²h
(5)Area of sphere = 4πr²
Volume of sphere = 4 πr²
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(6)Area of hemisphere = πr² + 2πr²
Volume of hemisphere = 2 πr²
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