GCSE Maths Practice: angles
Equilateral triangles have all sides and angles equal.
Divide 180° by 3 to find each angle in an equilateral triangle.
In an equilateral triangle, all three sides are equal, so all three angles are also equal. Since the sum of angles in any triangle is 180°, each angle in an equilateral triangle is 60°. Understanding this property is key for solving problems involving triangles, polygons, and geometric constructions. Equilateral triangles appear in tessellations, art, architecture, and engineering designs. Knowing that each angle is 60° helps with calculating unknown angles in composite shapes and understanding symmetry. Practicing drawing equilateral triangles and measuring angles reinforces the concept and prepares students for questions on triangle classification and properties in the GCSE exam.