Kuro has a stack of 15 coins on a table with a volume of 8

Last updated: 7/20/2022

Kuro has a stack of 15 coins on a table with a volume of 8 cubic centimeters. He has stacked them perfectly straight creating a cylindrical shape. He accidentally bumps the table, causing the coins to shift to a leaning position; but are still stacked. What would be the best estimate of the volume of the stack once it has been bumped/shifted? The volume cannot be calculated 8 cubic centimeters 9 cubic centimeters 7 cubic centimeters