Ask your own question, for FREE!
Mathematics 23 Online
OpenStudy (anonymous):

If two planes cross one another, then their intersection is two lines.

OpenStudy (abb0t):

perpendicular.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!