Which conjecture is possible to prove? If the four angles in a quadrilateral are congruent to the four angles in another
quadrilateral, then the two quadrilaterals are congruent.
If the three sides in a triangle are congruent to the three sides in another
triangle, then the two triangles are congruent.
If the three angles in a triangle are congruent to the three angles in another
triangle, then the two triangles are congruent.
If the four sides in a quadrilateral are congruent to the four sides in another
quadrilateral, then the two quadrilaterals are congruent.