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  1. 11+
  2. Year 3
  3. 2d-shapes-triangles-quadrilaterals-and-polygons
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Geometry: How Many Right Angles?

In this worksheet, students state which of the quadrilaterals and triangles shown have right angles (angles of 90 degrees).

'Geometry: How Many Right Angles?' worksheet

Key stage:  KS 2

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   2D Shapes: Triangles, Quadrilaterals and Polygons

Difficulty level:  

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Worksheet Overview

QUESTION 1 of 10

This worksheet is about right angles found in simple shapes.

 

Example

Which of these shapes are quadrilaterals with no right angles.

 

a
b
c
d
e
f
g
h

 

Answer

Remember that the corner of a rectangular piece of paper is a right angle.  

You can use this to help you.

Quadrilaterals have four sides.

Triangles have three sides.

Answer is a, d and e.

Which triangles are right angled?

 

a
b
c
d
e
f
g
h
a

b

c

d

e

f

g

h

Which triangles are not right angled?

a
b
c
d
e
f
g
h

a

b

c

d

e

f

g

h

Which quadrilaterals contain no right angles?

 

a
b
c
d
e
f
g
h
a

b

c

d

e

f

g

h

Which quadrilaterals contain at least one right angle?

a
b
c
d
e
f
g
h

a

b

c

d

e

f

g

h

Which of these are quadrilaterals with at least one right angle?

a
b
c
d
e
f
g
h

a

b

c

d

e

f

g

h

Choose the quadrilaterals which have no right angles.


a
b
c
d
e
f
g
h

a

b

c

d

e

f

g

h

Choose the triangles which do not have a right angle.

 

a
b
c
d
e
f
g
h
a

b

c

d

e

f

g

h

Which are the right angled triangles?

a
b
c
d
e
f
g
h
a

b

c

d

e

f

g

h

Which of these are right angled triangles?

 

a
b
c
d
e
f
g
h
a

b

c

d

e

f

g

h

Which of these shapes are not right angled triangles?

 

a
b
c
d
e
f
g
h
a

b

c

d

e

f

g

h

  • ANSWERS
  • Question 1

Which triangles are right angled?

 

a
b
c
d
e
f
g
h
CORRECT ANSWER
a
b
  • ANSWERS
  • Question 2

Which triangles are not right angled?

a
b
c
d
e
f
g
h

CORRECT ANSWER
d
e
f
  • ANSWERS
  • Question 3

Which quadrilaterals contain no right angles?

 

a
b
c
d
e
f
g
h
CORRECT ANSWER
c
g
  • ANSWERS
  • Question 4

Which quadrilaterals contain at least one right angle?

a
b
c
d
e
f
g
h

CORRECT ANSWER
h
  • ANSWERS
  • Question 5

Which of these are quadrilaterals with at least one right angle?

a
b
c
d
e
f
g
h

CORRECT ANSWER
b
  • ANSWERS
  • Question 6

Choose the quadrilaterals which have no right angles.


a
b
c
d
e
f
g
h

CORRECT ANSWER
a
e
f
g
  • ANSWERS
  • Question 7

Choose the triangles which do not have a right angle.

 

a
b
c
d
e
f
g
h
CORRECT ANSWER
c
d
  • ANSWERS
  • Question 8

Which are the right angled triangles?

a
b
c
d
e
f
g
h
CORRECT ANSWER
h
  • ANSWERS
  • Question 9

Which of these are right angled triangles?

 

a
b
c
d
e
f
g
h
CORRECT ANSWER
f
h
  • ANSWERS
  • Question 10

Which of these shapes are not right angled triangles?

 

a
b
c
d
e
f
g
h
CORRECT ANSWER
a
b
c
d
e
g
---- OR ----

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