queeenbre4332 queeenbre4332 29-04-2024 Mathematics Answered In ΔABC , A is (0, 0) B is (18, 21) and C has integer co-ordinates. The minimum non-zero area of ΔABC , in square units, is a) 3/2 b) 5/2 c) 7/2 d) 9/2