Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Ask your questions and receive accurate answers from professionals with extensive experience in various fields on our platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.
Which value of X will make AB perpendicular to CD? (Answer is B but I need to show work)
A) 6
B) 9
C) 11
D) 13
