I think your looking for width and length.
A circle is 2dimensional while a sphere is 3 dimensional.
The term planar means having a two dimensional characteristic. A polygon is a planar figure.
an parallelogram :) plane figure, any polygon
Flat
Giant and decadent are two words to describe this period.
No. A figure cannot have two perimeters.
Two
The figure formed by two rays sharing a common endpoint.
Aloof and quick.
Japan, Chile
Plane.
beautiful and light