Mathematics
Mathematics, 15.01.2020 17:31, cole088

Plzz
an open rectangular tank of length 32 cm and breadth 28 cm contains water to a depth of 19 cm. 2580 circular metal discs of diameter 23mm and height 4 mm are dropped into the tank. find ;

1. the new height of water in the tank,

2. the surface area of the tank that is in contact with the water after the discs have been added.

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