McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays

All the solutions provided in McGraw Hill My Math Grade 4 Answer Key PDF Chapter 14 Lesson 1 Draw Points, Lines, and Rays will give you a clear idea of the concepts.

McGraw-Hill My Math Grade 4 Answer Key Chapter 14 Lesson 1 Draw Points, Lines, and Rays

A point is an exact location that is represented by a dot. A line is a straight set of points that extends in opposite directions without ending.

Math in My World

Example 1

Molly drew the figure shown. Identify the figure she drew.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 1$
The figure extends in opposite directions. The arrows indicate that it extends without ending. It is a line.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 2$
This line is labeled with point X and point Y. There are different ways to represent this line, such as line XY or $\overleftrightarrow{X Y}$.
So, Molly drew _________________.
Answer: A line
A line is a straight set of points that extends in opposite directions without ending.

Example 2

Draw a figure that could be represented by $\overline{C D}$.
$\overline{C D}$ represents a line segment with endpoints C and D.
Answer:
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays$
A line segment is part of a line between two endpoints. Here, the endpoints are represented using C and D with blue color.

Example 3

Identify the figure at the right.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 3$
The figure has one endpoint and extends in one direction without ending. It is a ray.
The endpoint is A. The ray extends in the direction of point B.
So, the figure is ______________.
Answer: A ray
A ray is a part of a line that has one endpoint and extends in one direction without ending.

Guided Practice

Identify each figure.

Question 1.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 4$
Answer: Line segment
QR represents a line segment. A line segment is part of a line between two endpoints.

Question 2.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 5$
Answer: Line
FB represents a line. A line is a straight set of points that extends in opposite directions without ending.

Question 3.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 6$
Answer: Ray
AC represents a ray. A ray is a part of a line that has one endpoint and extends in one direction without ending.

Question 4.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 7$
Answer: Line
DF represents a line. A line is a straight set of points that extends in opposite directions without ending.

Talk Math

How are lines and line segments alike? How are they different?
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 8$
Answer: 1) A line is a straight set of points that extends in opposite directions without ending. The line segment does not extend in both directions since it has a starting and an ending point.
2) The line doesn’t have an endpoint. A line segment is part of a line between two endpoints.
3) The length of the line cannot be measured. The length of the line segment can be measured.
4) The line is represented as – AB and a horizontal line with arrow marks above the AB, i.e. $\overleftrightarrow{A B}$. Whereas, the line segment is denoted as – AB and a horizontal line above the AB, i.e. $\overline{A B}$.

Independent Practice

Identify each figure.

Question 5.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 9$
Answer: Ray
FG represents a ray. A ray is a part of a line that has one endpoint and extends in one direction without ending.

Question 6.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 10$
Answer: Line segment
HK represents a line segment. A line segment is part of a line between two endpoints.

Question 7.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 11$
Answer: Line
LM represents a line. A line is a straight set of points that extends in opposite directions without ending.

Question 8.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 12$
Answer: Line segment
NO represents a line segment. A line segment is part of a line between two endpoints.

Draw each figure.

Question 9.
point T
Answer:
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays-9$
An exact location represented by a dot is a point. Here T represents a point which is indicated as blue dot.

Question 10.
$\overleftrightarrow{Y Z}$
Answer:
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays-10$
A line is a straight set of points that extends in opposite directions without ending. YZ represents a line where it extends infinitely.

Question 11.
$\overrightarrow{C R}$
Answer:
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays-11$
A ray is a part of a line that has one endpoint and extends in one direction without ending. CR represents a ray with one end point C and extends infinitely in one direction.

Question 12.
$\overline{A W}$
Answer:
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays-12$
A line segment is part of a line between two endpoints. AW here indicates a line.

Question 13.
$\overleftrightarrow{S N}$
Answer:
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays-13$
A line is a straight set of points that extends in opposite directions without ending. SN represents a line where it extends infinitely.

Question 14.
$\overrightarrow{T J}$
Answer:
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays-14$
A ray is a part of a line that has one endpoint and extends in one direction without ending. TJ represents a ray with one end point T and extends infinitely in one direction.

Problem Solving

Question 15.
Identify the figure that is shown on the stop sign.
Answer: The figure that is shown on the stop sign is a red colored octagon. Octagon is a eight-sided polygon. So it has eight line segments in the figure which forms as an octagon. A line segment is part of a line between two endpoints.

Question 16.
Mathematical PRACTICE Use Math Tools Use a pencil to draw a different type of traffic sign than a stop sign. Then use a crayon or marker to show a line segment on the sign.
Answer:
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays-16$
NO PARKING traffic signal is shown in the above figure. It has a line segment enclosed in a circle. The line segment is represented along side using a black line segment in the sign. A line segment is part of a line between two endpoints.

Question 17.
Mathematical PRACTICE Model Math Name three real-world examples of line segments.
Answer: The real life examples of a line segments are edges of a wall, table edge, ruler, pencil, edges of a paper.

HOT Problems

Question 18.
Mathematical PRACTICE Use Math Tools Draw a line segment that is greater than 2 inches and less than 5 inches.
Answer:
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays-18$
The above figure represents a line segment that is greater than 2 inches and less than 5 inches. A line segment is part of a line between two endpoints. The endpoints are represented here as A and B.

Question 19.
Building on the Essential Question Explain the similarities and differences of lines and line segments.
Answer: 1. A line is a straight set of points that extends in opposite directions without ending. The line segment does not extend in both directions since it has a starting and an ending point.
2. The line doesn’t have an endpoint. A line segment is part of a line between two endpoints.
3. The length of the line cannot be measured. The length of the line segment can be measured.
4. The line is represented as – XY and a horizontal line with arrow marks above the XY, i.e. $\overleftrightarrow{X Y}$. Whereas, the line segment is denoted as – XY and a horizontal line above the XY, i.e. $\overline{X Y}$.

McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 My Homework Answer Key

Practice

Identify each figure.

Question 1.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 13$
Answer: Line segment
VZ represents a line segment. A line segment is part of a line between two endpoints.

Question 2.
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 14$
Answer: Line
MN represents a line. A line is a straight set of points that extends in opposite directions without ending.

Draw each figure.

Question 3.
$\overline{Y B} $
Answer:
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays-3$
A line segment is part of a line between two endpoints. YB here indicates a line.

Question 4.
$\overrightarrow{L R}$
Answer:
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays-4$
A ray is a part of a line that has one endpoint and extends in one direction without ending. LR represents a ray with one end point L and extends infinitely in one direction.

Problem Solving

Question 5.
How many line segments are represented in this figure?
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 15$
How many points are represented in this figure?
Answer: There are 4 line segments represented in the above figure. The line between the two endpoints are treated as a line segment.
There are 4 points represented in the above figure. A point is an exact location that is represented by a dot.

Vocabulary Check

Choose the correct word(s) to complete each sentence.
endpoint
line
line segment
point
ray

Question 6.
A ______________ is part of a line between two endpoints.
Answer: Line segment
A Line segment is part of a line between two endpoints.

Question 7.
An exact location represented by a dot is a _______________.
Answer: point
An exact location represented by a dot is a point

Question 8.
A _______________ is a figure that extends in opposite directions without ending.
Answer: line
A Line is a figure that extends in opposite directions without ending.

Question 9.
A ray has one _______________.
Answer: endpoint
A ray has one endpoint

Question 10.
A _______________ extends in one direction without ending.
Answer: Ray
A Ray extends in one direction without ending.

Test Practice

Question 11.
Which is the correct way to represent the figure?
$McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 Answer Key Draw Points, Lines, and Rays 16$
(A) ray WB
(B) line segment WB
(C) $\overline{W B}$
(D) $\overleftrightarrow{W B}$
Answer: D ($\overleftrightarrow{W B}$)
The line is represented as – WB and a horizontal line with arrow marks above the WB, i.e. $\overleftrightarrow{W B}$.

McGraw-Hill My Math Grade 4 Answer Key Chapter 14 Lesson 1 Draw Points, Lines, and Rays

McGraw Hill My Math Grade 4 Chapter 14 Lesson 1 My Homework Answer Key

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