Question

The vertices of AABC are A(1, -2), B(1,1), and C(5’ 2) Which could be the side lengths of a triangle that is similar but not congruent to ABC?

Answer 1

If we double all the coords we get a triangle similar to ABC but bigger than it and similar to it:

A'B'C' is the triangle with vertices A'(2,-4), B'(2,2), C'(10,4).