1. Types of Triangles
Thursday, 11 April 2019

2. The equilateral triangle
Properties
All sides are of the same length
All angles are of the same size, 60
It has three lines of symmetry
It has rotational symmetry of order 3

3. 2. The isosceles triangle
Properties
Has two sides of the same length
Has two angles are of the same size
It has one line of symmetry

4. 3. The right-angled triangle
Properties
Has one angle of 90

5. 3. The scalene triangle
Properties
All three sides are of different lengths

6. Right-angle Isosceles Scalene Example
Write down the name for each of the following triangles
(a)
Right-angle
(b)
Isosceles
(c)
Scalene

7. (d)
Scalene
(e)
Isosceles
(f)
Equilateral