How can you prove the triangles congruent below given the following information. Given: segment PN and segment KQ bisect each other.

25 ! i need asap! ! ill mark brainliest!

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?

Which expression is the factorization of x^2+10+21