The height of a stack of 5 pennies is 0.72 cm and the radius of the stack is 0.91 cm. The volume in mL of this stack of 5 pennies is ...

When pennies are stacked, the shape they forms would be a cylinder. The volume of a cylinder is calculated as follows:

V = pi (r^2) h

V = pi (0.91 cm) ^2 (0.72 cm)

V = 1.873 cm^3 (1 mL / 1cm^3)

V = 0.873 mL