Each statement below is always true. Select the statements for which the converse is also true. Read carefully! If 2 angles form a straight angle, then they are supplementary.

If a triangle is isosceles, then the base angles are congruent.

If a point is equidistant from the 2 endpoints of a segment, then it lies on the perpendicular bisector of the segment.

If 2 angles are vertical, then they are congruent.

If 2 lines are perpendicular, then they intersect to form 4 right angles.

If all three sides of a triangle are congruent to all three corresponding sides of another triangle, then the triangles are congruent.