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प्रश्न
From the information given below, find which of the point is between the other two. If the points are not collinear, state so.
d(P, R) = 7, d(P, Q) = 10, d(Q, R) = 3
उत्तर
We have,
d(P, R) = 7; d(P, Q) = 10; d(Q, R) = 3.
Now,
d(P, R) + d(Q, R) = 7 + 3
∴ d(P, R) + d(Q, R) = 10
∴ d(P, Q) = d(P, R) + d(Q, R)
Hence, the points P, R and Q are collinear.
The point R is between P and Q i.e., P-R-Q.
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