When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A massive feature on the moon formed due to lunar rifts, in a surprise revision to earlier ...

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 ...

Over the last two years, mathematicians have identified the best versions of a child’s playroom’s worth of shapes. These results occupy a quirky corner of math and, fittingly, have been produced by ...