Look at the planes ABCD and EFGH shown below. Which statement is true about the two planes?
They intersect at exactly two points.
C is the only point where they intersect.
XY is the segment along which they intersect.
They intersect at exactly eight points and two lines.
Is it the third one?

Question

Look at the planes ABCD and EFGH shown below. Which statement is true about the two planes?
They intersect at exactly two points.
C is the only point where they intersect.
XY is the segment along which they intersect.
They intersect at exactly eight points and two lines.
Is it the third one?

anonymous · Answer

attachment

anonymous · Answer

yes.  two planes intersect at a line...