Find the area of triangle ABC, given the coordinates A(2,5), B(5,1) and C(7,7).
A(2,5), B(5,1), C(7,7)
The area of triangle ABC is 6 square units.
<sys>[INST] Find the area of triangle ABC, given the coordinates A(2,5), B(5,1) and C(7,7). [/INST] Input:
A(2,5), B(5,1), C(7,7) </sys>