Mathematics, 20.05.2021 05:20 kukisbae

Which could be the first step of an indirect proof of the statement below? Select all that apply. •If the sum of the interior angles of a figure is 180°, then the figure is a triangle.
•If a figure is not a triangle, then the sum of the interior angles is not 180°.
•If the sum of the interior angles of a figure is 180°, then the figure is a triangle.
•Assume that the figure is not a triangle and the sum of the interior angles is not 180°.
•Assume that the sum of the interior angles of a figure is 180° and the figure is not a triangle.

Which could be the first step of an indirect proof of the statement below? Select all that apply.

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