How do you find the area of irregular objects?

Answer 1

There is no easy way, but here are some suggestions: (a) It may be possible to divide the irregular shape into regular parts and the area of each part can be calculated. (b) Copy the irregular shape onto a sheet of paper marked with a square grid (eg a graph paper). Count the number of squares such that at least half the square is in the object's outline. Ignore all other squares. Multiply your count by the area of a grid square. This will be an approximation to the area of the irregualr object. The finer the grid, the more accurate your estimated area but also the greater the effort involved in counting all the squares. You can draw the shape online at www.sketch n calc.com it will give you the area and perimeter of your object and it's a free calculator