Triangle ABC has vertices at A (3, 5), B (5, 7) and C (7, 5).
Lisa believes that the perimeter of ΔABC is 12 units.
Why is Lisa incorrect?
A.Because AB = 22√ units, BC = 22√ units and AC = 4 units.
B.Because AB = 8 units, BC = 8 units and AC = 16 units.
C.Because AB = 2 units, BC = 2 units and AC = 2 units.
D.Because AB = 4 units, BC = 4 units and AC = 8 units.
