# 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.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’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

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’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 ‘Resume Video’ 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 ‘Next’ below.

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 𝐴𝐸: 𝐴𝐶 = 6: 9 = 2:___

3/5

Q4.Fill in the gap: The ratio of 𝐴𝐸: 𝐸𝐶 = ___: 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

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 𝐴𝐸: 𝐴𝐶 = 6: 9 = 2:___

3/5

Q4.Fill in the gap: The ratio of 𝐴𝐸: 𝐸𝐶 = ___: 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:
Chair yoga