The intersection of plane R and plane P is .
Point is not on plane P.
Line C E and Line D B intersect at point .

Line DB

Think of the two planes as pages in a book. They are joined by the spine, which is where the two planes intersect. In this case, that intersection is the line DB.

Point D is on both planes R and S. So is point B. Every point on line DB is found on both planes.

1. Line DB

2. Point H

3. Point D

Explanation:    The intersection of plane R and plane P is   line DB

Point   H  is not on plane P

Line C E and Line D B intersect at point  D