In geometry, a three-sided plane figure, the sum of whose interior angles is 180°. Triangles can be classified by the relative lengths of their sides. A scalene triangle has three sides of unequal length. An isosceles triangle has at least two equal sides; it has one line of symmetry. An equilateral triangle has three equal sides (and three equal angles of 60°); it has three lines of symmetry.
The Union Jack signifies the islands' wish to preserve links with Britain. The nine stars representing the islands are placed according to their locations. Effective date: 11 April 1997.