Given polygon ABCD with coordinates A(-2,1),B(0,3),C(1,-4),D(-1,-1), if polygon ABCD is rotated 90 degree angle counterclockwise about the origin,then the coordinates of point A’are

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asked Mar 10, 2019 53.3k views

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Given polygon ABCD with coordinates A(-2,1),B(0,3),C(1,-4),D(-1,-1), if polygon ABCD is rotated 90 degree angle counterclockwise about the origin,then the coordinates of point A’are

Mathematics
middle-school

Guge asked

by Guge

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4 votes

Answer:

I don't get it please elaborate!

Step by Step Explanation:

Thank you!

Kenny Peng answered Mar 15, 2019

by Kenny Peng

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