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Back to OCR Maths Higher June 2018 Paper 5 Home
​Q16: Answers – Paper 5 – June 2018
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Content:
  • Part A) Circle Theorem
  • Part B) Circles Theorem​
Quizzes:
  • Part A) Circle Theorem
  • Part B) Circle Theorem

Mark Scheme
Picture

Working
A, B, C and D are points on the circumference of a circle. 
Picture
​PQ is a tangent to the circle at D.
Angle BDQ = 72° and angle ABD = 63°

a) Work out angle x.
Give a reason for your answer.
Picture
Picture

​b) Work out angle 
y.
Give a reason for your answer.
Picture
Picture

Question
16) A, B, C and D are points on the circumference of a circle. 
Picture
PQ is a tangent to the circle at D.
Angle BDQ = 72° and angle ABD = 63°

a) Work out angle x.
Give a reason for your answer.

Angle x = ...................° because ............................................................
[2 marks]​

b) Work out angle y.
Give a reason for your answer.

Angle y = ...................° because ............................................................
[2 marks]​
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