Year 7

Year 7

# Exploring intersections

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## Slide deck

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## Lesson details

### Key learning points

1. In this lesson, we will learn how to understand the properties of parallel lines.

### Licence

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

## Video

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
A circle split into 4 equal parts would result in the equal angles around the centre point being...
180 degrees
360 degrees
60 degrees
Correct answer: 90 degrees
Q2.
If a regular octagon was split into 8 equal parts, each equal angle at the centre would be...
360 degrees
Correct answer: 45 degrees
60 degrees
90 degrees
Q3.
You are given that: a + a + a + a = 180. What is the value of a?
180
Correct answer: 45
60
720
Q4.
If I have an equilateral triangle and a square around a point, what is the remaining angle left?
150 degrees
Correct answer: 210 degrees
60 degrees
90 degrees
Q5.
If each of the angles on a straight line are 50, 60, x and y, what is x?
110 degrees
180 degrees
70 degrees
Correct answer: None of the above - it is impossible to answer

## Exit quiz

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### 5 Questions

Q1.
The definition of a 'parallel line' is...
Lines that go on forever
Lines that intersect at a 32 degree angle
Lines that intersect at a 90 degree angle
Correct answer: Lines that never intersect
Q2.
Is it possible to draw a hexagon with three pairs of parallel sides?
No
Correct answer: Yes
Q3.
Is it possible to draw a triangle with a pair of parallel sides?
Correct answer: No
Yes
Q4.
If I draw a pair of lines and they both form a 70 degree angle with the horizontal, are they parallel?
No
Correct answer: Yes
Q5.
If I draw a pair of lines and one line forms a 20 degree angle with the horizontal, and the other forms a 20.01 degree line with the horizontal, are they parallel?
Correct answer: No
Yes