Five marks exercise problems X — task. Mathematics State Board, Class 9.

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Show that the following points taken in order form an equilateral triangle in each case.

\(A(\sqrt{3}, 2)\), \(B(0, 1)\), \(C(0, 3)\)

Proof:

AB = i

BC = i

BC = i

\(ABC\) is

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24. Five marks exercise problems X