Types of Triangles
Isosceles Triangle - An isosceles triangle is a triangle with two sides equal in length. Due to having two sides of equal length it also means that the triangle will have two equal angles. In the image on the left, the two base angles are equal.
Properties: Two sides are equal and two angles are equal.
Equilateral Triangle - An equilateral triangle is a triangle that has three sides of equal length and three equal angles. In an equilateral triangle we know that the three angles are the same and we also know that any triangle contains 180°, therefore 180° divided by 3 = 60°
Properties: Three sides are equal and three angles are equal. Angle = 60°
Similar Triangles - Similar triangles are triangles that have the same angles but different length of sides. The sides opposite the equal angles are proportional. Although the sides of each triangle are of differing length, the sides are in the same proportion.
Properties: Three angles are equal but length of sides vary.