How do you find the area of an octagon?

Answer by  Kaye (168)

First. divide the octagon into 8 triangles. Second, find the area of one of each side. Third, multiply by 8.

Answer by  Alp (20)

If it is a regular octagon you can use the formula 2x(1+√2)x(edge length)^2. If it is not regular , the easiest way is to think the octagon as a square where the corners are cut. First find the area of the square then substitute the area of the cut corners.

Answer by  iwillinvent (63)

You find the area of an octagon by breaking it down into smaller shapes and finding the area of those. The shapes should be triangular, square and rectangular.