Check posters. pupils’ Chapter 6: Answers to Review questions 1 a 2 b 4 2 C is the odd one out. A, B and D are all enlargements/similar. 3 a b 4 5 6 a A(2, 4), B(4, 4), C(4, 2), D(2, 2 b Check drawings. pupils’ c 8), 8), 4), 4) Aʹ(4, Bʹ(8, Cʹ(8, Dʹ(4, d 12), 12), 6), 6) Aʹʹ(6, Bʹʹ(12, Cʹʹ(12, Dʹʹ(6, Chapter 6: Answers to Problem solving Photographs – 1 £191.25 2 a 13 square inches b 11 square inches c 22 square inches 3 × and × with a scale factor of 2 12ʹʹ 8ʹʹ 6ʹʹ 4ʹʹ, 4 a × and × b Fast Print, £4.50 6ʹʹ 4ʹʹ 7ʹʹ 5ʹʹ 5 a × 6 : 4 6 ÷ 4 = 1.5 1.5 : 1 6ʹʹ 4ʹʹ × 7 : 5 7 ÷ 5 = 1.4 1.4 : 1 7ʹʹ 5ʹʹ × 8 : 6 8 ÷ 6 = 1.33 1.33 : 1 8ʹʹ 6ʹʹ × 12 : 8 12 ÷ 8 = 1.5 1.5 : 1 12ʹʹ 8ʹʹ × 13 : 8 13 ÷ 8 = 1.625 1.625 : 1 13ʹʹ 8ʹʹ b the × print 13ʹʹ 8ʹʹ
Check pupils’ posters. Chapter 6: Answers to Review questions 1 a 2 b 4 2 C is the odd one out. A, B and D are all enlargements/similar. 3 a b 4 5 6 a A(2, 4), B(4, 4), C(4, 2), D(2, 2 b Check pupils’ drawings. c Aʹ(4, 8), Bʹ(8, 8), Cʹ(8, 4), Dʹ(4, 4) d Aʹʹ(6, 12), Bʹʹ(12, 12), Cʹʹ(12, 6), Dʹʹ(6, 6) Chapter 6: Answers to Problem solving – Photographs 1 £191.25 2 a 13 square inches b 11 square inches c 22 square inches 3 12ʹʹ × 8ʹʹ and 6ʹʹ × 4ʹʹ, with a scale factor of 2 4 a 6ʹʹ × 4ʹʹ and 7ʹʹ × 5ʹʹ b Fast Print, £4.50 5 a 6ʹʹ × 4ʹʹ 6 : 4 6 ÷ 4 = 1.5 1.5 : 1 7ʹʹ × 5ʹʹ 7 : 5 7 ÷ 5 = 1.4 1.4 : 1 8ʹʹ × 6ʹʹ 8 : 6 8 ÷ 6 = 1.33 1.33 : 1 12ʹʹ × 8ʹʹ 12 : 8 12 ÷ 8 = 1.5 1.5 : 1 13ʹʹ × 8ʹʹ 13 : 8 13 ÷ 8 = 1.625 1.625 : 1 b the 13ʹʹ × 8ʹʹ print