Mathematics, 20.10.2020 20:01 Benthega

After a rotation of 90° about the origin, the coordinates of the vertices of the image of a triangle are A (6.3), B'(-2.1) and C (1, 7). What are the coordinates of the vertices of the pre-image?

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After a rotation of 90° about the origin, the coordinates of the vertices of the image of a triangle...

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