Given that the blue triangle is a right triangle, which numbers could be the areas of the green, red, and yellow squares (in that order)? a) 6, 8, 14 b) 5, 9, 13 c) 6, 10, 14 d) 7, 11, 15 (can you explain the answer)

B. congruent triangles

Step-by-step explanation:

Throughout the entire proof, we were mostly trying to show that ΔABD and ΔCDB are congruent so that we could prove that opposite sides of a parallelogram are equal.

Now we're down to the last step. This is where we need to show that the opposite sides are congruent. By definition of congruent triangles, corresponding sides are equal. Thus, since AD and BC are corresponding sides, they're equal.

The answer is B.