How to Measure
Square or Rectangle: Multiply the width times the length. (Area=L x W)
Triangle: Multiply the two longest sides together, and then divide by 2. (Area=B x H/2)
Circle: Take the radius (the distance across the middle of circle) and square it (multiply it by itself), then take this number and multiply it by Pi (3.14).(Area = πr2)
Odd Shape: Roughly divide the area into squares, triangles, etc. Calculate each separate piece and add them together.