Question

Prove that the sum of the measures of the interior angles of a triangle is 180°. Be sure to create and name the appropriate geometric figures.

Answer 1

If someone could just explain to me how to do this, that would work too. Like a walk through. =) Thanks.

Answer 2

Is this helpful?
https://www.khanacademy.org/math/geometry/parallel-and-perpendicular-lines/triang_prop_tut/v/proof---sum-of-measures-of-angles-in-a-triangle-are-180

Answer 3

It helped me understand why the sum of the interior angles of a triangle is equal; to 180 degrees. ..........They are supplementary.

Answer 4

The sum of the angles is equivalent to a straight line hence 180 degrees.

Answer 5

The proof was using the fact of transversals of parallel lines.

Answer 6

The video demonstrates how to prove it. Good luck with your studies.

Answer 7

Thanks!