Question

guided practice
vocabulary apply the vocabulary from this lesson to answer each question.

1. give an example from your classroom of three collinear points.
2. make use of the fact that endpoint is a compound of end and point and name the endpoint of $overline{st}$.

use the figure to name each of the following.

1. five points
2. two lines
3. two planes
4. point on $overleftrightarrow{bd}$

draw and label each of the following.

1. a segment with endpoints m and n
2. a ray with endpoint f that passes through g

use the figure to name each of the following.

1. a line that contains a and c
2. a plane that contains a, d, and c

sketch a figure that shows each of the following.

1. three coplanar lines that intersect in a common point
2. two lines that do not intersect

practice and problem solving
use the figure to name each of the following.

1. three collinear points
2. four coplanar points
3. a plane containing e

draw and label each of the following.

1. a line containing x and y
2. a pair of opposite rays that both contain r

use the figure to name each of the following.

1. two points and a line that lie in plane t
2. two planes that contain $ell$

sketch a figure that shows each of the following.

1. a line that intersects two nonintersecting planes
2. three coplanar lines that intersect in three different points

Explanation:

Let's take question 1 as an example to solve it:

Step1: Recall the definition of collinear points

Collinear points are points that lie on the same straight line.

Step2: Find an example in the classroom

In a classroom, consider the points where the corners of a whiteboard meet a vertical edge (like the top - left corner, a point along the vertical edge, and the bottom - left corner of the whiteboard), or the points along the edge of a ruler placed on the desk. Another common example is the three points: the front - left corner of a desk, a point along the front edge of the desk, and the front - right corner of the desk. These three points lie on the same straight line (the front edge of the desk).

Answer:

For example, the front - left corner of a desk, a point in the middle of the front edge of the desk, and the front - right corner of the desk (these three points are collinear as they lie on the straight front edge of the desk).

If you want to solve other questions, please provide more specific requirements (such as which question number you want to solve), and I will be happy to help you.