Year 7

# Measuring and drawing angles

## Slide deck

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## Lesson details

### Key learning points

- In this lesson, we will learn how to use a protractor to measure and be able to draw angles.

### 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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### 5 Questions

Q1.

The mathematical object to measure an angle is...

A compass

A protracter

A ruler

Q2.

A standard protractor (the one that was used in the video) measures from 0 degrees to...

100 degrees

270 degrees

90 degrees

Q3.

If I accidentally measured an angle from 180 degrees instead of 0 degrees, then I noticed that it measured to 150 degrees, what would the angle truly measure?

0 degrees

150 degrees

180 degrees

Q4.

The middle point of the mathematical object, where we line up the point at which the two lines meet, and where we measure an angle, is called...

The cross

The hairline

The point

Q5.

I measure an angle accidentally from 85 degrees instead of 0 degrees and it measures 112 degrees. I have done this as accurately as possible. Does this mean that my angle is 27 degrees?

No

### 5 Questions

Q1.

Which of the following best represents the definition of the word 'angle' in mathematics?

A mathematical object to measure an angle

A measure of how far you go around

A thing measured with a ruler

Q2.

A full turn represents how many degrees?

180

270

45

Q3.

Three quarters of a turn would represent how many degrees?

180

360

90

Q4.

Two thirds of a turn would represent how many degrees?

120

180

360

Q5.

If I were to turn 0 degrees, would I change direction at all?

Yes