Area N Perimeter

帮助农民来衡量他的土地的面积和周长建围墙

This cool app helps children to learn about Area and Perimeter - of regular and irregular shapes. Help the farmer to measure the area of the land. Grow crops on the given area of land. Then save it from plant eating animals by putting a fence around it. But what should be the length of the fence? Learn how to measure area and perimeter of land of different shapes.