# Geometry: How Many Right Angles?

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

Key stage:  KS 2

Curriculum topic:   Maths and Numerical Reasoning

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

Difficulty level:

### 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

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

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

• Question 1

Which triangles are right angled?

 a
 b
 c
 d
 e
 f
 g
 h
a
b
• Question 2

Which triangles are not right angled?

 a
 b
 c
 d
 e
 f
 g
 h

d
e
f
• Question 3

Which quadrilaterals contain no right angles?

 a
 b
 c
 d
 e
 f
 g
 h
c
g
• Question 4

Which quadrilaterals contain at least one right angle?

 a
 b
 c
 d
 e
 f
 g
 h

h
• Question 5

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

 a
 b
 c
 d
 e
 f
 g
 h

b
• Question 6

Choose the quadrilaterals which have no right angles.

 a
 b
 c
 d
 e
 f
 g
 h

a
e
f
g
• Question 7

Choose the triangles which do not have a right angle.

 a
 b
 c
 d
 e
 f
 g
 h
c
d
• Question 8

Which are the right angled triangles?

 a
 b
 c
 d
 e
 f
 g
 h
h
• Question 9

Which of these are right angled triangles?

 a
 b
 c
 d
 e
 f
 g
 h
f
h
• Question 10

Which of these shapes are not right angled triangles?

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

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