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Semmy [17]
3 years ago
5

Check whether the points are collinear or not (3,4) (3,7) and (3,9)​

Social Studies
1 answer:
poizon [28]3 years ago
5 0

Answer:

to check the point collinear or not the give point is equal to zero..

Explanation:

here

x1=3, y1=4 ,x2= 3 ,y2=7 ,X3= 3 ,y3=9

now

1/2 [x1(y2-y3 ) + x2 (y3-y1 ) +x3 (y1 -y2) ]

= 1/2 [ 3 ( 7-9 ) + 3 ( 9- 4) + 3 ( 4-7 )

= 1/2 [ -6+ 15 -9 ]

= 1/2 [ 0]

= 0

hence the given point is collinear.

thank you ☺️❤️

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