Mathematics, 30.10.2021 05:20 dina18
If quadrilateral ABCD rotates 90° counterclockwise about the origin, what are the coordinates of A′ in quadrilateral A′B′C′D′ ? Hint you should use the map (x, y)→(-y, x)
A
(2,1)
B
(-2,-1)
C
(-2,-2)
D
(-2,0)
Answers: 2
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If quadrilateral ABCD rotates 90° counterclockwise about the origin, what are the coordinates of A′...
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