A knife is a wedge by it's classical definition. "A piece of hard material with two principal faces meeting in a sharply acute angle"
There is something called a "wedge-knife", however most knives would not make very good wedges.
its a wedge because a knife is thin so it can hold up things
You take a butter knife and cut off a wedge of butter (the size depends on your like for butter). Rub the butter off the knife on whatever you want it on. If you don't have enough you can get another portion of butter.
A knife is a wedge.
A wedge
A knife is a wedge.
A knife is a simple machine, its a wedge.
There are 2 of them and they are a wedge, and a lever.
A wedge
First, take a knife, then you get the roll. Then, place the knife firmly in the butter, and swipe it. then, place the butter from the knife on the roll. Put the knife away, put the butter away, and enjoy the roll!!
That would be a wedge as the blade is sharpened to an edge. It could also arguably be a lever, the chopping board being a fulcrum.
wedge
axe, or knife
knife