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 ...

Words and images by photographer and writer Andrew S Gibson. Andrew is the author of the book: Square - The digital photographer's guide to the square format. You can learn more about Andrew and his ...

Working out square footage is an absolutely essential skill that crops up in countless real-world situations. Whether you're a student moving into your first flat and need to determine how much ...