The PPF is bowed outwards (concave to the origin) as tradeoffs between the production of any two goods are constant.
Chat with our AI personalities
the shape of the curve skewed is "right"
An ellipse.
There is no shape which has only three rectangle. And, if it has other faces, then there are many possibilities.
You like mens willy
A protractor is any of several devices used to either define an angle or curve, or to draw an angle, curve, or shape.