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 ...

The total area of a compound shape is found by adding up the areas of the rectangles that have created the whole shape. This may be done in more than one way. The calculation may use a subtraction of ...

Melvin Pasternak has spent 27+ years teaching at Mount Royal University and is the author of 21 Candles Every Trader Should Know. Suzanne is a content marketer, writer, and fact-checker. She holds a ...