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# Construct an angle bisector

## Lesson details

### Key learning points

1. In this lesson, we will learn how to construct an angle bisector using a compass, ruler, pencil and paper.

### 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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### 3 Questions

Q1.
What is a perpendicular bisector?
a) A straight line which is parallel to another line
b) A straight line which intersects another straight line at any point
Correct answer: c) A straight line which intersects another straight line through the midpoint
Q2.
A
C
Q3.
B
C

## Exit quiz

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### 3 Questions

Q1.
What is an angle bisector?
a) A straight line splitting an angle into two unequal angles
b) The angle of a sector of a circle
Correct answer: c) A straight line splitting an angle into two equal angles
Q2.
What is the first step when creating an angle bisector?
a) Mark any point on both of the given lines
Correct answer: b) Use a compass to mark a point of both of the given lines, without altering the width of the compass
c) Create a sector joining the ends of both lines with a compass
Q3.
A
B