Quadrilaterals
Area of a parallelogram 18Area of a trapezium 16🔒Diagonals of squares and rectangles 17🔒Folding paper 9🔒General quadrilaterals 17🔒Kites 7🔒Lengths in squares and rectangles 18🔒Midpoints in quadrilaterals 13🔒Perimeter of a parallelogram 17🔒Points inside a square 5🔒Quadrilaterals from diagonals 12🔒Rhombus: angles and sides 18🔒Rhombus: area and diagonals 17🔒Squares: midpoints and rotations 17🔒Trapezium midlines and diagonals 16🔒