Gale builds a circular pen in his yard for his dog. The pen has a radius of 10 ft. There is a law in Gale's town which states that all dogs must have at least 300 ft2 of room in their pen. Does Gales' pen meet the standards? Gale builds a circular pen in his yard for his dog. The pen has a radius of 10 ft. There is a law in Gale's town which states that all dogs must have at least 300 ft2 of room in their pen. Does Gales' pen meet the standards?