# Ratio and proportion in geometry II

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## Lesson details

### Key learning points

1. 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.

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This content is made available by Oak National Academy Limited and its partners and licensed under Oakβs terms & conditions (Collection 1), except where otherwise stated.

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
State the ratio between the side lengths AB and BC.
10 : 4
2 : 4
4 : 10
Q2.
State the constant of proportionality between triangle ABC and triangle DEF.
2
3
4
Q3.
Find the length of side DE.
10cm
40cm
80cm
Q4.
Find the length DE.
20cm
25cm
80cm
Q5.
Find the length DE.
10cm
11.5cm
30cm

## Exit quiz

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### 5 Questions

Q1.
Fill in the gap: We can divide a line segment into a given ________ by considering the coordinates of its endpoints.
constant
coordinate
proportion
Q2.
Fill in the gap: The _____________ of proportionality of ADE to ABC is 1.5.
coordinate
proportion
ratio
Q3.
Fill in the gap: The ratio of π΄πΈ: π΄πΆ = 6: 9 = 2:___
1
2
4
Q4.
Fill in the gap: The ratio of π΄πΈ: πΈπΆ = ___: 1
1
3
4
Q5.
A line segment ABC is split in the ratio AB to BC as 3 : 5. What fraction of the line segment is AB?
3/5