# Recognise acute and obtuse angles

## Lesson details

### Key learning points

1. In this lesson, we will learn to recognise acute and obtuse angles and shapes, then draw them on 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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### 7 Questions

Q1.
REVIEW: An angle is formed when two lines meet
false
Q2.
How big is a right angle?
180°
270°
360°
Q3.
Does this shape have a right angle inside it?
no
Q4.
Which shapes have a right angle (tick 2)
circle
square
Q5.
How many right angles are there inside a square?
2
3
5
Q6.
Which angle is a right angle?
1
3
Q7.
Which angles are right angles (tick 2)
3
4
5
6

## Exit quiz

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### 6 Questions

Q1.
REVIEW: How many degrees are there in a right angle?
180°
270°
360°
Q2.
An angle measuring less than 90° is:
a right angle
a straight line
obtuse
Q3.
Is a right angle acute, obtuse or neither?
acute
Correct answer: neither acute nor obtuse
obtuse
Q4.
Which angle is an acute angle?
2
3
Q5.
Which angles are obtuse (tick 2)
2
3
4
6
Q6.
Which angles are acute (tick 2)
1
2