None of the three planes intersect: none of the three planes intersect 2. the three planes intersect in one line: the three planes intersect in one line 3. the three planes intersect in one point: the three planes intersect in one point 4. two planes do not intersect. the third plane intersects the other two.: two planes do not intersect. the third plane intersects the other two. 5. exactly two planes intersect. the third plane does not intersect the other two.: exactly two planes intersect. the third plane does not intersect the other two.