a shape with five sides

• 五边形

a shape with five sides的用法和样例：

例句

1. The regular pentagon has been credited with magical powers throughout recorded history.
   历史记载认为，正五边形具有神秘的力量。
2. The office building of The U.S DOD is a pentagon construction,which is called as five angle building.
   美国国防部的办公大楼是一座五边形建筑物，叫做五角大楼。