# 3.1 Pairs of Lines Exit Ticket

In-class | 20 questions (16 autogradable) | 20 points

### Sometimes, Always, Never

1.

If two lines are not parallel, then they __________ intersect.

sometimes

always

never

2.

If one line is skew to another, then they __________ intersect.

sometimes

always

never

3.

If two lines are perpendicular, then they ___________ intersect.

sometimes

always

never

4.

If two lines are coplanar, then they are ______________ perpendicular.

sometimes

always

never

5.

If two lines are parallel, then they ___________ intersect.

sometimes

always

never

6.

If one line is skew to another, then they are ____________ coplanar.

sometimes

always

never

7.

If two lines intersect, then they are _____________ perpendicular.

sometimes

always

never

8.

If two lines are coplanar, then they are ______________ parallel.

sometimes

always

never

### True/False

9.

The plane containing the table top is parallel to the ground.

True

False

10.

The planes containing the edges of each leg are parallel to the plane containing the table top.

True

False

11.

Edge lines $\overleftrightarrow{AD}\ and\ \overleftrightarrow{CD}$ are perpendicular to each other.

True

False

12.

Edge lines $\overleftrightarrow{AD}\ and\ \overleftrightarrow{BC}$ will intersect.

True

False

13.

The planes containing the platforms outside of each pair of windows are parallel to the ground.

True

False

14.

The planes containing the stairs are parallel to each other.

True

False

15.

The planes containing the platforms outside of each pair of windows are perpendicular to the planes containing the stairs.

True

False

16.

The planes containing the platforms outside of each pair of windows are perpendicular to the side of the building.

True

False

### Drawing

17.

Draw a line through N and perpendicular to $\overleftrightarrow{MP}$.

18.

Draw a line through P and parallel to $\overleftrightarrow{MN}$.

19.

Draw a line through A and parallel to $\overleftrightarrow{BC}$.

20.

Draw a line through A and perpendicular to $\overleftrightarrow{BC}$.