Learning Task 3: In your area BE Learning Task 3: In your answer sheet, copy and answer, AABC Given : is inscribed in OD LABC Prove : is a right angle STATEMENT REASON 1. (1) Given AEC 2. m ABC + m - 3600 (2) 3. CA is diameter of OD АЕС ABC = 1800 3. m (3) The diameter divides the circle into semicircle = m 4. m ABC AEC m (4) 5. MZABC = 2 (180°) From 3 and 4, substitution. 6. LABC is a right angle (5) PIVOT 4A CALABARZON Math​