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Question
Find the distance between the points
(i) A(9,3) and B(15,11)
Solution
A(9,3) and B(15,11)
The given points are A(9,3) and B(15,11)
`Then ( x_2= 9,y_1=3) and (x_2 = 15 , y_2=11)`
`AB=sqrt((x_2-x_1)^2 +(y_2-y_1)^2)`
`=sqrt((15-9)^2 +(11-3)^2)`
`=sqrt((6)^2+(8)^2)`
`=sqrt(36+64)`
`= sqrt(100)`
= 100 units
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