Bruh no one is helping me with my questions anymore so could someone please help me on this :/ which of these statements are true

1. Vertical angles formed by intersecting lines are directly across from each other and are sometimes congruent.

2. An angle bisector divides an angle into two congruent angles

3. A midpoint divides a line into two congruent lines.

4. Perpendicular lines form congruent right angles.

5. An angle measuring 225 degrees is obtuse.

6. If two angles form a linear pair, then they are complementary.

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.