jakijakicarrillo12
01.12.2019 •
Mathematics
This diagram shows a pre-image △abc , and its image, △a′′b′′c′′ , after a series of transformations.
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Ответ:
Step-by-step explanation:
ΔABC is reflected across y axis [ as we can see points A',B,'C' and A,B,C are equidistant from y - axis. y- axis is working like a mirror ]
ΔA'B'C' is rotated 90 degrees counterclockwise about the origin to become A"B"C". [Sides A'B' and A"B" are perpendicular to each other]
Because the transformations are both rigid [No dilation in the figure A"B"C"], the pre image and the image are congruent [All corresponding sides are equal].
Ответ: