![]() ![]() What is a scalene triangle?Ī scalene triangle has no equal sides or angles. Isosceles comes from the latin meaning ‘equal legs’ and this can be an engaging way to get students to remember what an isosceles triangle is. What is an isosceles triangle?Īn isosceles triangle has two sides of equal length and two equal angles. Note that an obtuse-angle triangle is a triangle with one obtuse angle – a triangle can only have a maximum of one obtuse angle, otherwise it would take on a different shape and the angles would not add up to 180. Therefore an equilateral triangle is also an acute-angled triangle and an equiangular triangle ![]() An equilateral triangle is where the lengths of the sides of a triangle and all its interior angles are equal.Īs 180 degrees divided by 3 is 60, each angle will always be an acute angle of 60 degrees. There is a hint within the name as to the properties of this triangle. However, no matter what types of angle a triangle has, they will always ad What is an equilateral triangle? For example, an equilateral triangle has 3 equal angles, while an isosceles triangle has two equal lengths. The interior angles of a triangle can help to identify what type it is. In the early stages of primary school, students will just need to know that any triangle will have three sides. The angle measures, when added together, will result in a total of 180 degrees. As the name suggests, a triangle is a shape that contains three angles and three edges.
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