Question

If P-Q-R and d(P,Q) =2,d(P,R) = 10,then what is d(Q,R) ? *
plz help me

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Answer 1

Answer:

it is 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 =10-2=8

Hence ,the correct answer is 8.