Question

prove that all angle of a triangle is 180
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Answer 1

Answer:

Since adding the two interior angles gives the exterior angle of the 3rd angle, it would mean that all angles add up to one 80

Step-by-step explanation:

exterior angle = angle 1+ angle 2

angle 3= exterior angle -180

= (angle 1+2)-180

the difference between the exterior angle and the the total angle (180) is the interior angle

so if this applies to the angles as such it would mean their total is 180 too

this would mean that

angle 1+ angle 2+ angle 3=180