The stack on the left is made up of 15 pennies, and the stack on the right is also made up of 15 pennies. If the volume of the stack of pennies on the left is 360 mm3, what is the volume of the stack of pennies on the right in cubic millimeters? Use 3.14 for pi.

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anonymous · Answer

attachment

directrix · Answer

Posted diagram reminds me of Cavalieri's Principle.

directrix · Answer

"If, in two solids of equal altitude, the sections made by planes parallel to and at the same distance from their respective bases are always equal, then the volumes of the two solids are equal." http://mathworld.wolfram.com/CavalierisPrinciple.html

directrix · Answer

According to the Cavalieri Principle, the volumes have to be the same.
@lowcard2

anonymous · Answer

360  right? thank you!

directrix · Answer

You are welcome.