This rectangle covers 15 squares so it has an area of 15 cm 2. To find the exact area of a shape, count the whole squares and half squares. There are eight whole squares = 8 cm 2 and seven half ...

JJ is sorting these shapes in order from fewest sides to most sides. Let's count the number of sides. When counting sides be careful not to count the same side twice. Now we know how many sides ...