this engine is to be used for solving the area or regular polygons. to find the area you must: first: press space and type in the amount of sides if you don't know the amount your doomed. second: enter in the apothem and it will solve the area, or a question mark if you do not know its length. third: enter in the radius and it will solve the area, or a question mark if you do not know its length. finally: enter in a side length and it will solve the area, or a question mark if you do not know its length.
mathlizards :)
