25 THINGS YOU NEVER KNEW ABOUT CIRCLES
THEY’RE everywhere we look – in our homes, in our gardens and in the sky. They run our cars and our washing machines, but probably not our fridges. They’ve been around – quite literally – since the universe began. They come in all different sizes, from smaller than a penny to as big as a circus ring… but only one shape. They’re CIRCLES, and our lives would be very different without them. You may think you know your way around these ultimate curved shapes. But do you really? Here are…
1 THE AREA of a circle is equal to π r², so you would think the area of a larger circle would be bigger. But believe it or not, the area of the big circle is exactly the same as the smaller one… π r²!
are shapes with different numbers of sides. A triangle has three sides, a square has four, a pentagon has five and an icosagon has twenty. And you might suppose that a circle has just one side… . Because a circle, it’s just that the sides are too small to see, even with a microscope.
