mochoa4
18.12.2020 •
Mathematics
Segments DE, EF, and DF are midsegments of ABC . Find the length of the indicated segment. AB=
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Ответ:
Step-by-step explanation:
Assuming that the 270° rotation is in a clockwise motion,
A point (a, b) which undergoes such a rotation will have the new point (-b, a).
Since we have A(2, 1),
A' has the coordinates (-1, 2).