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Geometry: What's the Angle?

In this worksheet, students answer a variety of angle-based questions.

'Geometry: What's the Angle?' worksheet

Key stage:  KS 2

Curriculum topic:  Maths and Numerical Reasoning

Curriculum subtopic:  2D Shapes: Circles, Angles and Bearings

Difficulty level:  

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Worksheet Overview

QUESTION 1 of 10

Remember that......

 

The angles inside a triangle add up to 180º

 

The angles around a point add up to 360º

 

An acute angle is less than 90º

A right angle is 90º

An obtuse angle is between 90º and 180º

A straight line angle is 180º

A reflex angle is between 180º and 360º

Three of the four angles around a point are 25º , 105º and  65º.

Work out the size of the fourth angle in degrees.

 

(Just write the number)

Complete the sentence....

 

A  72º angle is ..................

acute

right angle

obtuse

straight

reflex

Two of the angles in a triangle are 25º and   67º.

Work out the size of the third angle in degrees.

 

(Just write the number)

Three of the four angles around a point are 255º , 5º and  61º.

Work out the size of the fourth angle in degrees.

 

(Just write the number)

Complete the sentence....

 

A  212º angle is ..................

acute

right angle

obtuse

straight

reflex

Two of the angles in a triangle are 115º and   43º.

Work out the size of the third angle in degrees.

 

(Just write the number)

Two of the three angles around a point are 115º and   43º.

Work out the size of the third angle in degrees.

 

(Just write the number)

Complete the sentence....

 

A  142º angle is ..................

acute

right angle

obtuse

straight

reflex

Two of the three angles in a triangle are 79º and   79º.

Work out the size of the third angle in degrees.

 

(Just write the number)

Four of the five angles around a point are 62º , 63º , 64º and  65º.

Work out the size of the fifth angle in degrees.

 

(Just write the number)

  • ANSWERS
  • Question 1

Three of the four angles around a point are 25º , 105º and  65º.

Work out the size of the fourth angle in degrees.

 

(Just write the number)

CORRECT ANSWER
165
  • ANSWERS
  • Question 2

Complete the sentence....

 

A  72º angle is ..................

CORRECT ANSWER
acute
  • ANSWERS
  • Question 3

Two of the angles in a triangle are 25º and   67º.

Work out the size of the third angle in degrees.

 

(Just write the number)

CORRECT ANSWER
88
  • ANSWERS
  • Question 4

Three of the four angles around a point are 255º , 5º and  61º.

Work out the size of the fourth angle in degrees.

 

(Just write the number)

CORRECT ANSWER
39
  • ANSWERS
  • Question 5

Complete the sentence....

 

A  212º angle is ..................

CORRECT ANSWER
reflex
  • ANSWERS
  • Question 6

Two of the angles in a triangle are 115º and   43º.

Work out the size of the third angle in degrees.

 

(Just write the number)

CORRECT ANSWER
22
  • ANSWERS
  • Question 7

Two of the three angles around a point are 115º and   43º.

Work out the size of the third angle in degrees.

 

(Just write the number)

CORRECT ANSWER
202
  • ANSWERS
  • Question 8

Complete the sentence....

 

A  142º angle is ..................

CORRECT ANSWER
obtuse
  • ANSWERS
  • Question 9

Two of the three angles in a triangle are 79º and   79º.

Work out the size of the third angle in degrees.

 

(Just write the number)

CORRECT ANSWER
22
  • ANSWERS
  • Question 10

Four of the five angles around a point are 62º , 63º , 64º and  65º.

Work out the size of the fifth angle in degrees.

 

(Just write the number)

CORRECT ANSWER
106
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