Area of parallelograms Learn about the area of parallelograms ... For students between the ages of 11 and 14. Volume of cubes and cuboids Learn how to find the volume of cubes and cuboids with ...

Save guides, add subjects and pick up where you left off with your BBC account. Showing that a parallelogram has the same area as a rectangle: Split the parallelogram into a right-angled triangle ...

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 ...