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Yr 9 – Angles Revision

Yr 9 – Angles Revision. Blue. Green. Red. Orange. Yellow. Grey. Question One. Answer. Name 3 acute angles in this picture. A. B. C. D. E. G. F. ^ ^ ^ ^ ^ ^. Ans: ﮮ BAG, CBD, EFD, DEF, BFG, BCE. Question Two. Answer.

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Yr 9 – Angles Revision

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

  2. Question One Answer Name 3 acute angles in this picture. A B C 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 Answer ? 0 What is the bearing for the compass direction NW? 0 Ans: 315º

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

  6. Question Five 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 Answer It’s a Race! All groups! Organise a bunch of different angles according to their type.

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

  13. Questions Twelve Answer What is the name of this 3 Dimensional Shape? 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 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 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 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 Answer Name this shape. What is the sum of all the interior angles of this quadrilateral? Ans: Isoceles Trapezium, 360º

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