If two triangles are congruent which of the following statements must be true? check all that apply
a. the triangles have the same size but not the same shape.
b. the triangles have the same size and shape
c. the corresponding sides of the triangles are congruent.
d. the corresponding angles of the triangles are congruent.

The correct answers are choices B, C, and D. Here is an explanation for each choice: B. All congruent figures are exactly the same size and shape. This is what makes one figure congruent to another. C. If the figures are the same size and shape, then the corresponding sides will also be congruent. D.If the figures are the same size and shape, then the corresponding angles will also be congruent.

X=3 and y=4 is the answer

These are the multiples of 15 but what you are probably asking or what are the factors of 15