In mathematics, a parallelogram is a flat shape (a special type of quadrilateral) with opposite sides that are parallel and equal in length. To solve complex questions involving these shapes, students ...

Hey everyone, thanks for your hard work on math!"The diagonals of a parallelogram are... wait, what about a rectangle?" There ...

Quite so. The problem with parallelograms is that they’re a con. They tell you that finding the area is simple: it’s base · height. Easy peasy! But what’s the height? Crap. The length of the sides isn ...

A worksheet on the properties of parallelograms, rectangles, rhombi and squares. It consists of two exercises, the second of which has 10 problems. In the first exercise, the students have to match ...

Take any quadrilateral such as ABCD above. Construct the midpoints of each side and join them to form another quadrilateral EFGH. Varignon's Theorem asserts that the ...

The base and perpendicular height are at right angles. Showing that a parallelogram has the same area as a rectangle: Split the parallelogram into a right-angled triangle and a trapezium. Move the ...