Calculating angles on a line or around a point

Calculating angles on a line or around a point

Lesson details

Key learning points

  1. 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?
Correct answer: no
yes
Q2.
Can you draw a quadrilateral with a reflex angle?
no
Correct answer: yes
Q3.
Draw a quadrilateral with these angles (30°, 30°, 70°). What is the size of the missing angle?
Correct answer: 230°
50°
It's impossible to draw

5 Questions

Q1.
What is the size of the missing angle?
An image in a quiz
120°
Correct answer: 30°
60°
Q2.
What is the size of the missing angle?
An image in a quiz
240°
30°
Correct answer: 60°
Q3.
What is the size of the missing angle?
An image in a quiz
50°
Correct answer: 55°
Q4.
How is this drawing incorrectly drawn?
An image in a quiz
Correct answer: the angles 130° and 50° are not drawn like a straight line
The angles add up to greater than 180°
The angles do not add up to 360°
Q5.
What angle would 4pm show?
An image in a quiz
Correct answer: 120°
40°
90°

Lesson appears in

UnitMaths / Angles