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प्रश्न
If P - Q - R and d(P, Q) = 2, d(P, R) = 10, then find d(Q, R).
विकल्प
12
8
`sqrt(96)`
20
उत्तर
8
Explanation:
Given that, Point Q is between point P and point R.
We have, d(P, Q) = 2; d(P, R) = 10
Now, d(P, R) = d(P, Q) + d(Q, R)
∴ d(Q, R) = d(P, R) - d(P, Q)
∴ d(Q, R) = 10 - 2
∴ d(Q, R) = 8
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