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Preeti Joshi · Answer 1 · 2021-09-08T15:23:51+0000

Answer:

28

Explanation:

The attached figure shows 7 triangles (counting the original 2). Each has degree-4 rotational symmetry about the center of the figure, so there can be 7×4 = 28 triangles.

How many different isosceles right triangles can be formed from three dots in the-example-1

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