Properties of quadrilaterals · Grade 5
In Grade 5 you learn: parallel and perpendicular sides; parallelograms, rhombuses and trapeziums.
A quadrilateral is any four-sided shape. Squares, rectangles, rhombuses, parallelograms, trapeziums and kites each have their own properties of sides, angles, diagonals and symmetry, which help us name them and find missing angles.