Triangle ABC has coordinates A(-4,-2), B(0,-2) and C(-4,1). The triangle DEF has coordinates D(3,6), E(3,2) and F(0,2).
Use coordinate geometry to determine if these two triangles are congruent. If they are not congruent, state the reason.
A: The triangles are congruent.
B: The triangles are not congruent because the corresponding angles are not congruent.
C: The triangles are similar but they are not congruent.
D: The triangles are not congruent because the corresponding sides are not congruent.
Can someone please teach me how to do this You could go through the math to find the side lengths of the six sides and compare them but these are easy to understand if you just plot the points.
Then it is easy to see that ABC is a 3-4-5 right triangle.
Now take a look at DEF. Ccw