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Rzqust [24]
2 years ago
9

Please help ill mark brainliestO​

Mathematics
1 answer:
guapka [62]2 years ago
8 0

Answer:

8 cm

Step-by-step explanation:

According to the condition,

\dfrac{PQ}{RS} = \dfrac{QT}{ST}\\\\\implies \dfrac{9}{3} = \dfrac{QT}{4}\\\\ \implies 3 =\dfrac{QT}{4}\\\\\implies QT = 3 \times 4 = 12~ \text{cm}\\\\\text{Hence}~ QS =QT - ST = 12 -4 = 8~ \text{cm}

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