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 Form 4 Mathematics Paper 1 Exam Revision Questions With Answers Set 2

Fig. (i) above shows a triangle ABC in which AB = a cm, BC = 12 cm and angle ABC = 30°. Fig. (ii) shows a rectangle PQRS in which PQ = 9 cm and QR = b cm. Given that the area of the triangle is two-thirds the area of the rectangle, find the ratio a : b.

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