# Section A: Practice Problems Points, Lines, Segments, Rays, and Angles

## Section Summary

Details

In this section, we learned the meanings of points, lines, line segments, and rays. We used these terms to describe figures and used these geometric parts to create drawings.

We learned about lines that cross—intersecting lines—and lines that never do—parallel lines, and we looked for examples of intersecting lines and parallel lines and segments in life.

Finally, we learned that an angle is a figure made up of two rays that share the same endpoint, and that the shared point is the vertex of the angle.

## Problem 1 (Pre-Unit)

Draw a rectangle on the grid and label it A. Draw a triangle and label it B. Draw a hexagon and label it C.

## Problem 2 (Pre-Unit)

1. Is the shape a rhombus? Explain your reasoning.

2. Is the shape a rectangle? Explain your reasoning.

3. Is the shape a square? Explain your reasoning.

## Problem 3 (Lesson 1)

1. Draw 4 different lines through points on the grid. At least two of the lines should cross another line.

2. Mark at least 3 different segments in your drawing.

## Problem 4 (Lesson 2)

1. Circle the line segments that make up the letter A.

2. Draw 4 rays that surround a rectangle.

3. Can you find 4 different rays that surround the same rectangle?

## Problem 5 (Lesson 3)

Andre says that these two lines are parallel because they do not intersect.

1. Explain why Andre is not correct.

2. Draw a line that is parallel to one of the lines in the image.

## Problem 6 (Lesson 4)

• Which segments of the letter Z are a pair of parallel lines? Draw the lines.

• Sketch a line that is parallel to the third segment in the Z.

## Problem 7 (Lesson 5)

1. Find one angle in the figure. Draw a pair of rays to show the angle and extend them as far as you can.

2. Find another angle in the figure. Draw a pair of rays to show it. Extend the rays as far as you can. (If you’d like, you can use a different colored pencil for this pair of rays.)

3. Now that you have drawn some rays, do you see other angles that you didn’t see before? If you see one or more, label each one with a letter.

## Problem 8 (Exploration)

Here is a riddle. Can you solve it?

“I am a capital letter made of more than 1 segment with no curved parts. I have no perpendicular segments or parallel segments. What letter could I be?”