Question 10 39 cm B 8° 45 cm Figure 1 NOT TO SCALE (b) Find sin C, giving your answer in the form (c) Find the area of triangle ABC. 42 cm Figure 1 shows the acute-angled triangle ABC with AB = 39 cm, AC = 42 cm and BC = 45 cm. Angle A = 0°. 12 C (a) Find cos 8, giving your answer in the form where p and q are integers and without finding the size of 0, show that sin 0 = Show all working. 13 where m and n are integers.

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