 # Extended IGCSE Starter 1 Extended IGCSE Starter 1

• Slides: 21 Extended IGCSE Starter 1 • • Extended IGCSE Starter 1 ANSWERS Extended IGCSE Starter 2 • • Extended IGCSE Starter 2 ANSWERS Extended IGCSE Starter 3 10 marks = 10 minutes • Extended IGCSE Starter 3 ANSWERS • Extended IGCSE Starter 3 10 marks = 10 minutes • Extended IGCSE Starter 3 8 marks = 8 minutes • Extended IGCSE Starter 6 10 marks = 10 minutes • Extended IGCSE Starter 7 10 marks = 10 minutes • Extended IGCSE Starter 7 10 marks = 10 minutes • Extended IGCSE Starter 8 7 marks = 7 minutes ABCD is a quadrilateral. Angle BAD is 49˚ and angle ABD is 54˚ BC = 90 m, BD = 75 m and CD = 85 m 1) Use the sine rule to calculate the length AD  2) Use the cosine rule to calculate angle BCD Extended IGCSE Starter 8 7 marks = 7 minutes ABCD is a quadrilateral. Angle BAD is 49˚ and angle ABD is 54˚ BC = 90 m, BD = 75 m and CD = 85 m 1) Use the sine rule to calculate the length AD = 80. 4  2) Use the cosine rule to calculate angle BCD = 50. 7 degrees Extended IGCSE Starter 9 10 marks = 10 minutes • Extended IGCSE Starter 10 10 marks = 10 minutes • Extended IGCSE Starter 11 10 marks = 10 minutes • Extended IGCSE Starter 12 10 marks = 10 minutes 1) 2) (ii) What is the upper bound for the area of a square with sides of 4. 2 cm to 1 d. p.  Magazines cost \$m each and newspapers cost \$n each. – One magazine costs \$2. 55 more than one newspaper. – The cost of two magazines is the same as the cost of five newspapers. Write down two equations in m and n to show this information.  Find the values of m and n.  3. A spherical balloon of radius 3 metres has a volume of 36π cubic metres. It is further inflated until its radius is 12 m. Calculate its new volume, leaving your answer in terms of π. Extended IGCSE Starter 13 10 marks = 10 minutes Extended IGCSE Starter 14 10 marks = 10 minutes • Extended IGCSE Starter 15 10 marks = 10 minutes • Extended IGCSE Starter 16 10 marks (4+3+3) = 10 minutes