VERIFY THAT THE SUM OF THE ANGLES OF A TRIANGLE IS 180 DEGREE. Share with your friends Share 0 Brijendra P. answered this Here is the link for answer to your query! https://www.meritnation.com/ask-answer/question/how-will-you-prove-that-sum-of-all-angles-of-a-triangle-is/triangles/1198942 0 View Full Answer