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Students, we have learned how to find the area of a triangle if we have three, what is given right

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now using that same criteria we can find if three points are linear, linear means, the points lie

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on the same line.

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For example, over here, these three points lie on the same line and hence the ERCOLINI.

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Now, if they were not kaleena, right.

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If they were not convenient.

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So for example, it's like this, then you can form a triangle.

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Right.

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And if you can form a triangle, it will have some area.

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But in this case you cannot form a triangle.

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Therefore, if you are given these three vertices and if you do this operation, which we discussed

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before and you get the area zero, that means the three given points are linear.

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Now, what does this mean?

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Remember, you need to multiply it in a cross fashion, right?

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You need to multiply x1 with y2, x2 with Y three and X three with Y one.

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Now also you need to multiply Y two with x2 with wyvern extremist Y to an X one with Y three.

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So that gives X one Y two plus x2 Y three plus X three.

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Wyvern is equal to x2 wyvern plus X three by two plus x1 y three.

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So if this is true it means that the given three points are linear.

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Now it's much easier to remember it like this rather than remembering the formula like this over here.