Area is the size of a surface!
It helps to imagine how much paint would cover the shape.
There are special formulas for certain shapes:
Learn more at Area of Plane Shapes.
We can also put the shape on a grid and count the number of squares:
The rectangle has an area of 15
If each square was 1 cm on a side, then the area would be 15 cm2 (15 square cm)
Sometimes the squares don't match the shape exactly, but we can get an "approximate" answer.
This pentagon has an area of approximately 17
Example: Here the area marked "4" seems equal to about 1 whole square (also for "8"):
This circle has an area of approximately 14
We can sometimes break a shape up into two or more simpler shapes:
When we know the coordinates of each corner point we can use the Area of Irregular Polygons method.
There is an Area of a Polygon by Drawing Tool that can help too.