High school geometry
Use the vertices of /\ ABC and /\ DEF to show that <A=<D (= equals congruent to)(/\ equals triangle)
9. A(l, 2), B(4, -3), C(2, 5), D(4, 7), E(7, 2), F(5, 10)
how to solve: Use the Distance Formula to find the side lengths of the triangles. Use the SSS Congruence Postulate to show that /\ABC = /\DEF. Then use the fact that corresponding parts of congruent triangles are congruent to prove that ∠ A =∠ D.
Can someone help with this?