# Ratio and proportion in geometry II

In this lesson, we will divide oblique line segments into specified ratios by dividing the segment's horizontal and vertical displacements in the same ratio.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, letβs see what you can remember from this topic. Hereβs a quick quiz!

Q1.State the ratio between the side lengths AB and BC.

1/5

Q2.State the constant of proportionality between triangle ABC and triangle DEF.

2/5

Q3.Find the length of side DE.

3/5

Q4.Find the length DE.

4/5

Q5.Find the length DE.

5/5

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, letβs see what you can remember from this topic. Hereβs a quick quiz!

Q1.State the ratio between the side lengths AB and BC.

1/5

Q2.State the constant of proportionality between triangle ABC and triangle DEF.

2/5

Q3.Find the length of side DE.

3/5

Q4.Find the length DE.

4/5

Q5.Find the length DE.

5/5

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the βResume Videoβ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click βNextβ below.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Ratio and proportion in geometry II

Show your understanding on today's lesson by completing the quiz

Q1.Fill in the gap: We can divide a line segment into a given ________ by considering the coordinates of its endpoints.

1/5

Q2.Fill in the gap: The _____________ of proportionality of ADE to ABC is 1.5.

2/5

Q3.Fill in the gap: The ratio of π΄πΈ: π΄πΆ = 6: 9 = 2:___

3/5

Q4.Fill in the gap: The ratio of π΄πΈ: πΈπΆ = ___: 1

4/5

Q5.A line segment ABC is split in the ratio AB to BC as 3 : 5. What fraction of the line segment is AB?

5/5

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Ratio and proportion in geometry II

Show your understanding on today's lesson by completing the quiz

Q1.Fill in the gap: We can divide a line segment into a given ________ by considering the coordinates of its endpoints.

1/5

Q2.Fill in the gap: The _____________ of proportionality of ADE to ABC is 1.5.

2/5

Q3.Fill in the gap: The ratio of π΄πΈ: π΄πΆ = 6: 9 = 2:___

3/5

Q4.Fill in the gap: The ratio of π΄πΈ: πΈπΆ = ___: 1

4/5

Q5.A line segment ABC is split in the ratio AB to BC as 3 : 5. What fraction of the line segment is AB?

5/5

# Lesson summary: Ratio and proportion in geometry II

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Climb stairs

On the spot:
Dance