SOLUTION: can you explain to me why the exterior angle of a triangle equals the sum of two interior opposite angles thanks alot
Algebra.Com
Question 457166: can you explain to me why the exterior angle of a triangle equals the sum of two interior opposite angles thanks alot
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The sum of angles in a triangle = 180 degs
The sum of any 2 angles = 180 - the 3rd angle
--------
The exterior angle also = 180 - the interior angle
There's no "why", it just does
RELATED QUESTIONS
I am working with Triangle Exterior Angle Theorems and was confused by this problem. I... (answered by ikleyn)
The sum of angles of a triangle is 180degree and Exterior angle of a triangle is equal... (answered by MathLover1)
If the sum of the measures of two exterior angles of a triangle is 230, find the measures (answered by mangopeeler07)
How do u solve the question A triangle has an exterior angle with a measure of 120°. Can... (answered by ikleyn)
A right triangle has an exterior angle with a measure of 160 degrees. Can you determine... (answered by solve_for_x,math_helper)
What is the ratio of sum of interior angles of a triangle to its exterior... (answered by Fombitz)
decide if each statement about angle relationships is true or false. Choose True or False (answered by MathLover1)
I am working with Triangle Exterior Theorems and was confused with this problem.
The... (answered by ikleyn)
Two angles in a triangle are equal and their sum is equal to the third angle in the... (answered by Boreal)