How much is a flat foot of Wobaotian's calligraphy?

33.3 centimeters. A horizontal scale of Wobaotian's calligraphy is 1 square foot, such as length 1 foot, width 1 foot, and the enclosed area is about 0. 1 1 square meter. One meter three feet, one foot is about 33.3 cm. 1 square foot, that is, about 33.3cm×33.3cm How many square meters of houses we buy, how many acres of land farmers plant, and the sizes of calligraphy and painting and Chinese painting are all several square feet.