![]() We can use these properties to solve problems and find missing angles.Īn equilateral triangle has three equal sized side lengths and two equal sized angles.Įquilateral triangles have 3 equal sides and 3 equal angles. We can recognise right angled isosceles triangles because they have 1 right angle, 2 equal sides and 2 equal angles. We can recognise right angled triangles because they have one right angle. We can recognise scalene triangles because all the sides are different and all the angles are different. The 2 equal angles are the base angles of the isosceles triangle. We can recognise isosceles triangles because they have 2 equal sides and 2 equal angles. Equal sides are often labelled with dashes. We can recognise equilateral triangles because they have 3 equal sides and 3 equal angles. We also need to recognise that there are lots of different types of triangles and they are all unique because of the collection of properties each shape may have. We know that all triangles have 3 sides and 3 angles. The 6 types of triangles can be listed as, acute triangle, obtuse triangle, right triangle, equilateral triangle, isosceles triangle, and scalene triangle.We need to know the types of triangles and their properties. Which Types of Triangles Have Reflection Symmetry?Īll equilateral and isosceles triangles have reflection symmetry. Which Types of Triangles Have 3 Lines of Symmetry?Īll equilateral triangles have 3 lines of symmetry as three lines of symmetry can pass through the vertex of this triangle.
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