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Mathematics, 30.10.2020 19:30 itsssleaaa

Which triangle must be a right triangle and why? ΔA'B'C' is right because it is the image of ΔABC.

ΔADC is right because AA' intersects AC at A.

ΔBCC' is right because B lies of the line of reflection.

ΔBGC is right because Line E G is perpendicular-to CC'.

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