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Mathematics 8 Online
OpenStudy (vera_ewing):

A triangle has coordinates A (1, 5), B (-2, 1) and C (0, -4). What are the new coordinates if the triangle is rotated 90° clockwise around the origin?

OpenStudy (vera_ewing):

@ShailKumar help me pleaseeeeee

OpenStudy (anonymous):

Wait...

OpenStudy (anonymous):

First get reflected triangle in y axis. To do that change the sign of x coordinates. Soy our coordinates are A' (-1, 5), B' (2, 1) and C' (0, -4).

OpenStudy (anonymous):

*So your

OpenStudy (vera_ewing):

A triangle has coordinates A (1, 5), B (-2, 1) and C (0, -4). What are the new coordinates if the triangle is dilated with a scale factor of 1/5?

OpenStudy (anonymous):

Hold on, the last question is not completed yet!

OpenStudy (anonymous):

Then for orientation, exchange the a and y coordinates. So the 90 degree rotated image will have the coordinates A'' (5,-1), B'' (1,2) and C'' (-4,0)

OpenStudy (vera_ewing):

oh ok oops

OpenStudy (anonymous):

For example |dw:1404310385858:dw|

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