Write a statement that indicates that the triangles in each pair are congruent.

What is the measure of angle afe? 79 81 91 99

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Which must be true in order for the relationship △zyv ~ △xwv to be correct? zy ∥ wx ∠z ≅ ∠y and ∠w ≅ ∠x zv ≅ vy and wv ≅ vx ∠z ≅ ∠x and ∠w ≅ ∠y