Types of Triangle Poster – Equilateral, Isosceles, Right-angled & Scalene. Clear diagrams, key properties + angle sum rule (180°).

This colourful classroom poster clearly shows the four main types of triangles with labelled diagrams and key properties for each. Perfect for Key Stage 2/Key Stage 3 classroom display, maths working wall, or revision support.

Includes:

Equilateral triangle: 3 equal sides, 3 equal angles (all 60°), 3 lines of symmetry

Isosceles triangle: 2 equal sides, 2 equal angles (base angles), 1 line of symmetry

Right-angled triangle: one 90° angle, other angles total 90° (a + b = 90°), hypotenuse identified

Scalene triangle: all sides and angles different, no lines of symmetry

Reminder rule: angles in any triangle add to 180°