in the diagram m = 128° and m = 76°. what is m∠abc? 43 in the diagram, m = 128° and m = 76°. what is m∠abc? 3 Given ABC with m∠B = 62° and side AC extended to D, as shown below. 2 In… Written By Joan G. Shea Sunday, February 6, 2022 Add Comment Edit