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​Q19: Question – Paper 6 – November 2018

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Content:

• The Sine Rule – Finding an Angle
• The Cosine Rule – Finding a Length
• Area of a Triangle using Sine​
• The Quadratic Formula – Part 1
• The Quadratic Formula – Part 2​

Quizzes:

• The Sine Rule – Finding an Angle
• The Cosine Rule – Finding a Length
• Area of a Triangle using Sine
• The Quadratic Formula

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Question

19) In this triangle:

• AB = 9cm
• AC = 10cm
• BC > 5cm
• angle BCA = 60°
• angle ABC < 90°.

Calculate the area of triangle ABC.
​

.......................... cm²

[6 marks]

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