Answer:
19,088 cm³
Explanation:
Volume of the cone, V = 512 cm³
Length of the rectangular tank = 49 cm
Width = 20 cm
height of the tank = 20 cm
Volume of the tank = l b h
= 49 x 20 x 20 = 19600 cm³
Volume left for fish when a cone is placed
= 19600 - 512
= 19,088 cm³