from a cylinder of radius 7cm and height 12cm,a conical cavity of same

1.	from a cylinder of radius 7cm and height 12cm,a conical cavity of same radius and same height is hollowed out 1) find total surface of solid and 2)volume of solid
Answer» Step-by-step EXPLANATION: total surface AREA of a solid=2 πr (r+h) =2×3.14×7(7+12) = 43.96×19 = 835.24 cm^2 2- total VOLUME of solid = πr ^2H = 3.14×7×7×12 = 1846.32cm ^3

from a cylinder of radius 7cm and height 12cm,a conical cavity of same radius and same height is hollowed out 1) find total surface of solid and 2)volume of solid

Answer»

Step-by-step EXPLANATION:

total surface AREA of a solid=2 πr (r+h)

=2×3.14×7(7+12)

= 43.96×19

= 835.24 cm^2

2- total VOLUME of solid = πr ^2H

= 3.14×7×7×12

= 1846.32cm ^3

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from a cylinder of radius 7cm and height 12cm,a conical cavity of same radius and same height is hollowed out 1) find total surface of solid and 2)volume of solid ​

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from a cylinder of radius 7cm and height 12cm,a conical cavity of same radius and same height is hollowed out 1) find total surface of solid and 2)volume of solid