Vocab
100

Square

 what is a plane figure with four equal straight sides and four right angles ?

200

Triangle

What is a plane figure with three straight sides and three angles ?

300

Rectangle

What is a plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square?

400

Circle

What is a round plane figure whose boundary (the circumference) consists of points equidistant from a fixed point (the center) ?

500

Pentagon

a plane figure with five straight sides and five angles.