Year 5

Reading angles on a protractor Part 3

Year 5

Reading angles on a protractor Part 3

Lesson details

Key learning points

  1. In this lesson, we will learn how to use a protractor to calculate and measure a reflex angle and an angle in a shape.

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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4 Questions

Q1.
What error has the user made?
An image in a quiz
Baseline not aligned
Correct answer: Both the cross hairs and baseline are not aligned
Cross hairs not aligned
None - the angle is correct, 20°
Q2.
How big is angle C?
An image in a quiz
100°
140°
Correct answer: 40°
60°
Q3.
How big is angle B?
An image in a quiz
100°
140°
40°
Correct answer: 60°
Q4.
What is the approximate size of an internal angle of this regular pentagon?
An image in a quiz
Correct answer: 108°
112°
38°
72°
it's impossible to tell

4 Questions

Q1.
What is the size of this reflex angle?
An image in a quiz
140°
Correct answer: 220°
40°
Q2.
Which angle is this protractor measuring?
An image in a quiz
a
Correct answer: b
c
d
e
Q3.
How many degrees is this angle?
An image in a quiz
150°
Correct answer: 210°
30°
Q4.
How many degrees is this angle?
An image in a quiz
120°
140°
40°
60°
Correct answer: none of these