関連ワード:
a triangle has all sides are equal is called a triangle have all sides equal is called a triangle all sides are equal is called a triangle whose all sides are equal is called a triangle whose all sides are equal is called dash a triangle has two sides are equal is called a triangle has no two sides equal is called a a triangle which has no sides equal is called a triangle that has all three sides equal is called a triangle that has all sides and angles equal is called
