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It is given that $\triangle ABC \sim \triangle QRP$ such that $AB = 9$ cm, $BC = 5$ cm and $PR = 2$ cm. Length of side $QR$ is :
- (a)$0.9$ cm
- (b)$\frac{5}{18}$ cm
- (c)$\frac{10}{9}$ cm
- (d)$3.6$ cm
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(D) $3.6$ cm (1 Mark)