https://artandatoms.com/6-which-is-the-measure-of-ab-a-55xb0-b-50xb0-c-45xb0-d-40xb0-b-55xb0/
6. Which is the measure of AB? A. 55\xb0 B. 50\xb0 C. 45\xb0 D. 40\xb0 B 55\xb0