Step-by-step explanation:
Determining the type or triangle -
- Acute - Acute angle triangle consists of angles less than 90° . that means all the three angles will be less than 90° .
Example = 60° ,60° ,60° .
- Obtuse = These triangles consists of any one angle of more than 90° and less than 180° . While other two will be acute angles .
Example = 110° ,40° ,30°
- Right = Right angle Triangle consist of one angle measuring 90° .
Example = 90° , 45° ,45°
- Not a Triangle = When the sum of all three angles is not 180° then the figure is said to be not a triangle.
