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Mathematics 8 Online
OpenStudy (anonymous):

NEED HELP ASAP!! WILL FAN AND MEDAL!! Pentagon ABCDE is shown on the coordinate plane below. If pentagon ABCDE is rotated 180° around the origin to create pentagon A'B'C'D'E', what is the ordered pair of point C'? (2 points) (-5, 2) (5, 2) (2, -5) (-2, 5) GRAPH IN COMMENT

OpenStudy (anonymous):

OpenStudy (thread252):

-2,-5 i think

OpenStudy (thread252):

-2, 5 i mean

OpenStudy (anonymous):

can you provide me with an explantation and are you 100% sure

OpenStudy (anonymous):

@lochana is -2, 5 right

OpenStudy (anonymous):

@Tommynaiter can you check if -2,5 is correct?

OpenStudy (anonymous):

In order to rotate something 180 degree clockwise around a point Q, then you multiply each coordinate with -1. Therefore the answer is indeed -2,5

OpenStudy (anonymous):

thanks soo much you're the best!

OpenStudy (anonymous):

You're welcome.

OpenStudy (lochana):

@Tommynaiter C coordinates are (-2,-5). So how would it be (-2,5) after multiplying by -1. Am I missing something?

OpenStudy (lochana):

@agevd12 I think it is (5,2). hmm

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