A triangle has \(3\) sides.

A square has \(4\) equal sides and \(4\) equal corners.

A kite has \(4\) sides. It has \(2\) pairs of equal sides. The equal sides touch.

A rhombus has \(4\) equal sides but does not have equal corners.

A trapezium has \(4\) sides, \(2\) of which are parallel and \(2\) are not.

A parallelogram has \(4\) sides. It has \(2\) pairs of parallel sides.

An oval is round and curves inward everywhere.