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OpenStudy (12g):
Which one of these transformations would produce an image that is not congruent to its pre‐image?
A dilation followed by a reflection
A rotation of 90 degrees about the origin
A translation of (x − 1, y − 3)
A rotation followed by a translation
OpenStudy (12g):
i think its D just want to make sure
OpenStudy (michele_laino):
I think that option D is a wrong option
OpenStudy (12g):
how
OpenStudy (lvana):
Remember, congruent means 'same size - same shape".
So, A would be your answer. As the shape wouldn't be the same size any longer by dilating it.
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OpenStudy (michele_laino):
for example consider this drawing:
|dw:1450372887402:dw|
OpenStudy (michele_laino):
as we can see the final shape, is not congruent with the original shape
OpenStudy (12g):
ohh ya thought congruent was something else i did this stuff at the beginning of the ear soo
OpenStudy (12g):
thank you guys
OpenStudy (michele_laino):
:)
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OpenStudy (lvana):
Anytime.~ @12G
OpenStudy (12g):
wait
OpenStudy (12g):
a inscribed equilateral triangle is a triangle in a circle right
OpenStudy (lvana):
Yes, of course.~
OpenStudy (12g):
ok just wanted to make sure
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