Every shape on this sheet has four sides, so counting them gets a child nowhere. These free printable worksheets are the point where naming a figure stops being counting and starts being a question about its properties.
If they get stuck
The answer key prints on a separate page.
Six four-sided shapes and three of their names under each figure. Because every option has four sides, the side count — which answered the earlier sheet — is now useless, and the child has to look at what actually separates them: whether the opposite sides run parallel, whether all four are the same length, whether the corners are square. That is the point, and it is the reason this is a separate sheet rather than a harder setting on the last one.
The distinctions worth knowing are the ones these six force. A square is a rhombus with square corners. A rhombus is a parallelogram with four equal sides. A kite has two pairs of equal sides but they sit next to each other rather than opposite. A trapezoid has exactly one pair of parallel sides. Each of these is a small rule, and a page mixing all six asks for each of them in turn.
One question from a sheet like this one, worked a step at a time — with a sentence saying what just happened and why.
Naming quadrilaterals, step by step