find value of k for which the distance between the point A (K,2) and b(9,8) is 10 unit
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Answer:
k=1
step by step explanation:-
Distanse between AB=√(x2-x1)²+(y2-y1)²
(AB)²=(x2-x1)²+(y2-y1)²
(10)²=(9-k)²+(8-2)²
100=(9-k)²+(6)²
100 =(9-k)²+36
100-36=(9-k)²
64=(9-k)²
(9-k)=√64
9-k=8
k=9-8
k=1.
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