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Geometry: Know Your Degrees and Angles

In this worksheet, students answer general questions about angles and learn some facts about shapes.

'Geometry: Know Your Degrees and Angles' worksheet

Key stage:  KS 2

Curriculum topic:   Geometry: Properties of Shapes

Curriculum subtopic:   Know Angles and Degrees

Difficulty level:  

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Worksheet Overview

QUESTION 1 of 10

Learn the following angle facts:

 

An ACUTE angle is between 0º and 90º.

A RIGHT angle is exactly 90º.

An OBTUSE angle is between 90º and 180º.

A STRAIGHT LINE angle is exactly 180º.

A REFLEX angle is between 180º and 360º.

 

There are 180º at angles that meet at a point on a straight line.

There are 360º at angles that meet at a point.

 

A ¼ turn is 90º.

A ½ turn is 180º.

A ¾ turn is 270º.

A whole turn is 360º.

 

 

Want to understand this further and learn how this links to other topics in maths?


Why not watch this video?

 

How many degrees are there in a full turn?

How many degrees are there in a right angle?

Complete:

A 59º angle is.....

acute

right-angled

obtuse

a straight line angle

reflex

Complete:

An obtuse angle is.....

less than 90°

90°

between 90° and 180°

180°

between 180° and 360°

Complete:

The angles at a point on a straight line add up to ............ º

Which instrument would you use to draw and angle of 125º ?

a ruler

a set square

a compass

a protractor

Complete:

A reflex angle is.....

less than 90°

90°

between 90° and 180°

180°

between 180° and 360°

Two of the three angles at a point on a straight line are 54º and 85º.  

Work out the size of the third angle in degrees.

Two of the three angles around a point are 54º and 85º.  

Work out the size of the third angle in degrees.

An angle which is between 170º and 270º could be........

(tick all that apply)

reflex

right-angled

a straight line angle

acute

obtuse

  • Question 1

How many degrees are there in a full turn?

CORRECT ANSWER
360
EDDIE SAYS
90 degrees x 4 quarter turns = 360
  • Question 2

How many degrees are there in a right angle?

CORRECT ANSWER
90
EDDIE SAYS
Right angles have 90 degrees.
  • Question 3

Complete:

A 59º angle is.....

CORRECT ANSWER
acute
EDDIE SAYS
An acute angle is less than 90 degrees.
  • Question 4

Complete:

An obtuse angle is.....

CORRECT ANSWER
between 90° and 180°
EDDIE SAYS
An obtuse angle is more than 90 degrees, but less than 180 degrees.
  • Question 5

Complete:

The angles at a point on a straight line add up to ............ º

CORRECT ANSWER
180
EDDIE SAYS
There are 180º at angles that meet at a point on a straight line.
  • Question 6

Which instrument would you use to draw and angle of 125º ?

CORRECT ANSWER
a protractor
EDDIE SAYS
A protractor is the instrument used to measure angles.
  • Question 7

Complete:

A reflex angle is.....

CORRECT ANSWER
between 180° and 360°
EDDIE SAYS
A reflex angle is between 180º and 360º.
  • Question 8

Two of the three angles at a point on a straight line are 54º and 85º.  

Work out the size of the third angle in degrees.

CORRECT ANSWER
41
EDDIE SAYS
54 + 85 = 139 Subtract from 180 to find angles at a point on a straight line. 180 - 139 = 41
  • Question 9

Two of the three angles around a point are 54º and 85º.  

Work out the size of the third angle in degrees.

CORRECT ANSWER
221
EDDIE SAYS
54 + 85 = 139 Subtract from 360 degrees to find angles around a point. 360 - 139 = 221
  • Question 10

An angle which is between 170º and 270º could be........

(tick all that apply)

CORRECT ANSWER
reflex
a straight line angle
obtuse
EDDIE SAYS
The answer can't be right angles or acute angles. Right-angles are 90 degrees and acute angles are less than 90 degrees.
---- OR ----

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