関連ワード:
a triangle having three sides are equal is called a triangle having all three sides are equal is called a triangle with all three sides are equal is called a triangle with three sides equal is called a triangle with 3 sides equal is called a triangle having three equal sides is called dash a triangle whose three sides are equal is called a triangle with all three sides equal is called dash a triangle which has three sides equal is called a triangle whose all three sides are equal is called
