Triangle JKL has been reflected over the y-axis. Which of the following best describes the relationship between the y-axis and the line connecting K to K′?

A) They share the same midpoints
B) They are diameters of concentric circles
C) They are parallel and congruent
D) They are perpendicular to each other

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?