Final answer:
Plains Indians lived in teepees, which were portable cone-shaped structures made of animal hides and wooden poles.
Step-by-step explanation:
Plains Indians lived in teepees. A teepee is a type of portable dwelling made of animal hides stretched over wooden poles. It was a cone-shaped structure that provided the nomadic Plains Indians with a simple and efficient form of shelter. Teepees were easily assembled and disassembled, which made them perfect for the nomadic lifestyle of the Plains Indians.
Learn more about Plains Indians and their dwellings