1. Yr 9 – Angles Revision
Blue
Green
Red
Orange
Yellow
Grey

2. Name 3 acute angles in this picture.
Question One
Answer A B C
Name 3 acute angles in this picture. D E G F
^ ^ ^ ^ ^ ^
Ans: ﮮBAG, CBD, EFD, DEF, BFG, BCE

3. Question Two
Answer
What is the mathematical name of this famous 3 Dimensional Structure?
Ans: Square based pyramid

4. Question Three What is the bearing for the compass direction NW?
Answer ?
What is the bearing for the compass direction NW?
Ans: 315º

5. Question Four
Answer
42º x
123º
What is the missing angle, x? State the angle property you used?
Ans: 42º (Vertically opposite angles are equal)

6. Question Five y What is the missing angle, y?
Answer
What is the missing angle, y?
Give the angle property you used to make the calculation. y
42º
123º
Ans: 48º (Angles on a line add to 180º)

7. Question Six
Answer C S
Are 42º and 48º complementary or supplementary angles?
Ans: Complementary

8. Question Seven It’s a Race!
Answer
It’s a Race!
All groups! Organise a bunch of different angles according to their type.
First team who finishes correctly, wins. Use 6 Pack of laminated ‘Angles and type’ in Ziplock bags

9. Question Eight
Answer X
What is the missing angle, x ?
102º
Ans: 24º

10. Question Nine
Answer y
What are the missing angles and what type of triangle is this ? x z
Ans: x = y = z = 60º (equilateral triangle)

11. Question Ten
Answer
Supplementary
Angles add to _______?
Ans: 180º

12. Question Eleven Correctly identify all 3 of the triangles shown 2 3 1
Answer 1
Correctly identify all 3 of the triangles shown 2 3
Ans: 1.) Scalene 2.) Right-angled 3.) Isoceles

13. Questions Twelve What is the name of this 3 Dimensional Shape? Answer
Ans: Triangular Prism

14. Question Thirteen
Answer N
What is the best estimate for the bearing from X to Y? x
045º, 230º, 280º or 175º y
Ans: 230º

15. Questions Fourteen
Answer
Name this quadrilateral. What is the missing angle, x? x
65º
Ans: x = 65º (Parallelogram)

16. Question Fifteen x What is the missing angle, x?
Answer
What is the missing angle, x?
State the angle property you used to make the calculation.
12 º x
Ans: 258º (Sum of angles at a pt add to 360º)

17. Question Sixteen How many: Faces_______ Edges_______ Vertices_____
Answer
How many:
Faces_______
Edges_______
Vertices_____
Ans: 6 Faces, 12 Edges, 8 Vertices

18. Question Seventeen
Answer
Name this 3 Dimensional Shape
Ans: Cylinder

19. Question Eighteen
Answer N
What is the best estimate for the bearing from A to B? B A
135º, 045º, 070º, or 255º
Ans: 070º

20. Question Nineteen What is the name and type of this angle?
Answer A
What is the name and type of this angle?
Which point is the vertex? C B ^
Ans: ﮮABC, obtuse, vertex at B

21. Question Twenty Name this shape.
Answer
Name this shape.
What is the sum of all the interior angles of this quadrilateral?
Ans: Isoceles Trapezium, 360º