Geometry 1a: Mastery Questions
Guidance Notes - To answer each question, click on the letter that corresponds to the correct answer. You then need to click the 'Check' button to see if you are correct. If your answer is incorrect, you will be given a hint on how to get the correct answer. You then need to click the 'Try again' button to attempt the question once more.
1. What sort of triangle is this?

  A   Equilateral   B   Right angled
  C   Isosceles   D   Scalene
     
2. What sort of triangle is this?

  A  
Equilateral
   B  
Right angles
  C  
Isosceles
   D  
Scalene
     
3. What sort of angle is this?

  A  
Reflex
   B  
Right angle
  C  
Acute
   D  
Obtuse
     
4. Which of these angles is acute?

  A     B     C     D  
    
5. Which of these angles is angle x?

  A  
∠LMN
   B  
∠LNM
  C  
∠LNP
   D  
∠MLN
     
6. What is the size of the marked angle?

  A     B  
  C  
  D  
36°
54°
124°
144°
    
7. What is the size of the marked angle?

  A  
  B  
   C     D  
72°
118°
42°
62°
    
8. What is the size of the the marked angle?

  A  
  B  
   C     D  
39°
118°
49°
51°
    
9. What is the size of the marked angle?

  A  
   B  
  C  
  D  
109°
22°
131°
158°
    
10. What is the size of the marked angle?

  A     B     C     D  
66°
63°
46°
54°
    
11. What is the size of the marked angle?

  A     B     C     D  
66°
63°
46°
54°
    
12. What is the size of the missing angle?

  A     B     C     D  
41°
33°
51°
74°
    
13. What is the size of the missing angle?

  A     B     C     D  
46°
44°
62°
72°
    
14. How many vertices does a cuboid have?

  A     B     C     D  
4
12
8
6
    
15. How many faces does a cuboid have?

  A     B     C     D  
4
12
8
6
    
16. How many different shaped faces are there in this cuboid?

  A     B     C     D  
4
3
6
2
    
17. Which of these is not a net for a cube?

  A     B     C     D  
    
18. This is the net of a cube.
When folded correctly which face will be opposite the yellow face?

  A     B     C     D  
    
19. Which of the following sets of 3 lengths could not be used to construct a triangle?

  A  
6cm, 6cm, 6cm
   B  
6cm, 6cm, 9cm
  C  
6cm, 6cm, 3cm
   D  
6cm, 6cm, 13cm
     
20. Which of the following sets of 3 lengths could not be used to construct a triangle?

  A  
3cm, 3cm, 3cm
   B  
3cm, 6cm, 9cm
  C  
3cm, 12cm, 12cm
   D  
3cm, 4cm, 5cm
     
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