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Show that the following points form an isosceles triangle.

(1, 3), ( - 3, - 5) and ( - 3, 0)

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(1, 3), ( - 3, - 5) and ( - 3, 0)

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Find the distance between the points and if two sides are of same length then it is an isosceles triangle

The distance b/w AB = √(-3-1)²+(-5-3)² = √16+64 = √80

The distance b/w BC = √(-3+3)²+(0+5)² = 5

The distance b/w CA = √(-3-1)²+(0-3)² = √16+9 = 5

As the two sides are equal BC = CA .

We can say the given points forms an isosceles triangle.

Hence proved.