A 4 2 b 7 2 c 7 9 July 8, 2019 16 32 64 128 If a 4 2 b 7 2 c 7 9 If a 4 2 b 7 2 and c 7 9 are the vertices of abc then abc is The points a 4 2 b 7 2 c 0 9 A 4 2 b 7 2 and c 7 9 are the vertices of a aabc then aabc is 4/a + 7/b A)-7 4-2 9
