Year 4
Shape and symmetry: To identify acute and obtuse angles
Year 4
Shape and symmetry: To identify acute and obtuse angles
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Lesson details
Key learning points
- In this lesson, we will recap the names of different types of angles. We will look specifically at acute and obtuse angles and explore where they can be found. We will learn what makes an angle acute or obtuse and how they are different.
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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.
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5 Questions
Q1.
How many right angles does this shape contain?
3
none
Q2.
How many right angles does this shape contain?
2
3
Q3.
Which of these shapes contains at least 1 right angle?
1st shape
2nd shape
Q4.
How many degrees in 3 right angles?
180°
360°
Q5.
Estimate this angle. Which guess is closest?
270°
300°
5 Questions
Q1.
What kind of angle is MORE than 90° but LESS than 180°
Acute
Reflex
Q2.
How many degrees in 2 right angles?
60°
90°
Q3.
How many degrees on a straight line?
45°
90°
Q4.
Which answer is the closest estimate for the following angle?
100°
80°
Q5.
What kind of angle is 30°?
obtuse
right angle