ayoismeisalex
20.04.2020 •
Mathematics
If quadrilateral ABCD rotates 90° counterclockwise about the origin, what are the coordinates of A′ in quadrilateral A′B′C′D′ ?
A.
(2, 1)
B.
(-2, -1)
C.
(-2, -2)
D.
(-2, 0)
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Ответ:
(-2,-1) after the original point (2,1) goes through the change of -y,x
Step-by-step explanation:
Ответ:
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The answer is C coresponding angles
Step-by-step explanation: