Calculating angles on a line or around a point
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Lesson details
Key learning points
- In this lesson, we will learn how to calculate angles on a straight line, vertically opposite angles and angles around a point.
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.
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3 Questions
Q1.
Can you draw a triangle with a reflex angle?
yes
Q2.
Can you draw a quadrilateral with a reflex angle?
no
Q3.
Draw a quadrilateral with these angles (30°, 30°, 70°). What is the size of the missing angle?
50°
It's impossible to draw
5 Questions
Q1.
What is the size of the missing angle?
120°
60°
Q2.
What is the size of the missing angle?
240°
30°
Q3.
What is the size of the missing angle?
50°
Q4.
How is this drawing incorrectly drawn?
The angles add up to greater than 180°
The angles do not add up to 360°
Q5.
What angle would 4pm show?
4°
40°
90°