Four shapes(triangle,dimonds,or cone)
There are technically many shapes that could be put into the form of a triangle, but only triangles can make real triangles (without getting into more complicated shapes).
5
myra has 375 and rick has 125
(300 + 420 + 180) / 25 = 36
9 shapes
22 stamps
Well you can make at least 52 shapes using jello.
Rubber stamps come in many shapes and sizes. They consist of a handle, usually of wood or plastic, and the die--attached to said handle-- made of rubber or a rubber like substance.
Four shapes(triangle,dimonds,or cone)
Oh, isn't that just lovely? You have a variety of stamps to work with! With four 3-cent stamps and three 4-cent stamps, you can create amounts of postage ranging from 3 cents to 16 cents by using different combinations of these stamps. Just mix and match them like happy little colors on a canvas, and you'll have all the postage you need!
You can make a retangle and diamond. :)
12
about 10
There are technically many shapes that could be put into the form of a triangle, but only triangles can make real triangles (without getting into more complicated shapes).
You can make a lot more than three shapes with just 2 prisms.
Currently in the US up to one ounce is 45 cents. So however many stamps it takes to make that amount.