Exterior Angle Property (1 Viewer)

[seremify007]

hey guys,

Quick mental blank question..

What's the exact wording for the reason when the external angle equals the sum of the angles inside the shape not counting the angle next to it? Sorry for bad explanation, but if I knew, then I wouldn't have to ask eh?

I have looked up answers and all they say are "Exterior Angle prop." which seems a bit short >_>

Thanks guys
jeff.

 

[Jago]

the exterior angle of a triangle is equal to the sum of the interior opposite angles?

 

[James87]

Hey I think you mean this

"the exterior angle of a triangle is equal to the sum of the two opposite interior angles"

 

[seremify007]

That's it. Thanks a heap!