Question

reviewing undefinable terms. the intersection of plane r and plane p is line db. point is not on plane p. and intersect at point

Explanation:

Step1: Recall plane - intersection property

The intersection of two non - parallel planes is a line. In the figure, plane R and plane P intersect along line DB.

Step2: Identify points not on a plane

By observing the figure, point H is outside plane P.

Step3: Find intersection of lines

Assuming the lines are as shown in the context, if we consider lines in the figure, we need to find their intersection point. But since the specific lines for the third part are not clearly defined in the question description, we focus on the first two parts.

Answer:

The intersection of plane R and plane P is line DB. Point H is not on plane P.