Respuesta :
Answer:
Step-by-step explanation: The facts about Triangles are:
- They will add up to 180°.
- Sum of exterior angle = 360° .
- The rule Inequality is used i.e. the sum of 2 shorter sides is greater than the 3rd side.
- All the angles cannot be 90°.( 90°+90°+90°≠180°)
- There are only 3 sides and 3 angles.
- At least 1 angle is Obtuse angle and other two angles are acute angles.
for eg. 120+30+30=180.
