Question

find \\(\overleftrightarrow{kf} \cap \text{plane } j\\)

this is the select of \\(\overleftrightarrow{kf}\\) and plane \\(j\\).

\\(\overleftrightarrow{kf} \cap \text{plane } j =\\) select

find \\(\text{point } e \cap \text{plane } j\\).

this is the select of point \\(e\\) and plane \\(j\\). does point \\(e\\) lie inside or outside of plane \\(j\\)?

\\(\text{point } e \cap \text{plane } j =\\) select

find \\(\overleftrightarrow{ab} \cap \overleftrightarrow{cd}\\).

this is the select of \\(\overleftrightarrow{ab}\\) and \\(\overleftrightarrow{cd}\\).

\\(\overleftrightarrow{ab} \cap \overleftrightarrow{cd} =\\) select

find \\(\text{line } h \cup \text{plane } j\\).

this is the select of line \\(h\\) and plane \\(j\\). since line \\(h\\) is on plane \\(j\\),

\\(\text{line } h \cup \text{plane } j =\\) select

Explanation:

Identify the first operation

Using the Geometric Set Operations and Intersection and Union knowledge points:
We need to find \(\overleftrightarrow{KF} \cap \text{Plane } J\).

• \(\overleftrightarrow{KF}\) is a line that passes through the plane \(J\).
• Looking at the diagram, line \(\overleftrightarrow{KF}\) intersects plane \(J\) at exactly one point, which is point \(F\).
• Therefore, this is the intersection of \(\overleftrightarrow{KF}\) and Plane \(J\).
• \(\overleftrightarrow{KF} \cap \text{Plane } J = F\).

Identify the second operation

Using the Geometric Set Operations and Intersection and Union knowledge points:
We need to find \(\text{Point } E \cap \text{Plane } J\).

• Point \(E\) is located outside of Plane \(J\).
• Since Point \(E\) does not lie on Plane \(J\), they share no common points.
• Therefore, this is the intersection of Point \(E\) and Plane \(J\).
• \(\text{Point } E \cap \text{Plane } J = \emptyset\) (the empty set).

Identify the third operation

Using the Geometric Set Operations and Intersection and Union knowledge points:
We need to find \(\overleftrightarrow{AB} \cap \overleftrightarrow{CD}\).

• \(\overleftrightarrow{AB}\) (line \(h\)) and \(\overleftrightarrow{CD}\) (line \(i\)) are two lines lying in Plane \(J\).
• Looking at the diagram, these two lines intersect at point \(C\).
• Therefore, this is the intersection of \(\overleftrightarrow{AB}\) and \(\overleftrightarrow{CD}\).
• \(\overleftrightarrow{AB} \cap \overleftrightarrow{CD} = C\).

Identify the fourth operation

Using the Geometric Set Operations and Intersection and Union knowledge points:
We need to find \(\text{Line } h \cup \text{Plane } J\).

• Line \(h\) (which is \(\overleftrightarrow{AB}\)) lies entirely within Plane \(J\).
• The union (\(\cup\)) of a subset and its containing set is the larger set itself.
• Therefore, this is the union of Line \(h\) and Plane \(J\).
• \(\text{Line } h \cup \text{Plane } J = \text{Plane } J\).

Answer:

Question 1

• This is the intersection of \(\overleftrightarrow{KF}\) and Plane \(J\).
• \(\overleftrightarrow{KF} \cap \text{Plane } J =\) <blank>\(F\)</blank>

Question 2

• This is the intersection of Point \(E\) and Plane \(J\). Does Point \(E\) lie inside or outside of Plane \(J\)? outside
• \(\text{Point } E \cap \text{Plane } J =\) <blank>\(\emptyset\)</blank>

Question 3

• This is the intersection of \(\overleftrightarrow{AB}\) and \(\overleftrightarrow{CD}\).
• \(\overleftrightarrow{AB} \cap \overleftrightarrow{CD} =\) <blank>\(C\)</blank>

Question 4

• This is the union of Line \(h\) and Plane \(J\). Since Line \(h\) is on Plane \(J\).
• \(\text{Line } h \cup \text{Plane } J =\) <blank>\(\text{Plane } J\)</blank>