A piece of paper can be made into a cylinder in two ways: by joining the short sides together, or by joining the long sides together. Which cylinder would hold more? How much more?

It would hold more if you roll up the long sides. It would hold about 5x more than it would if it was rolled up by the short side

a is the correct

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

happy to

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