With all that​ emphasis on the significance of the square in our lives, how did we get to that semi-put down of the middle of ...

Subtract the area of this square from the rectangle. Break the shape into two squares and a rectangle. Calculate the area of each shape. \(4 \times 4 = 16~\text{cm}^2\), \(4 \times 4 = 16~\text{cm}^ ...

What’s important to understand is that geometry has rules, has facts you need to know. Here’s a rule you probably know: that a shape with 4 right angles and 4 equal sides is a square!