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zambk10
10.10.2019 •
Mathematics
Dilate triangle abc by a factor of 2 around point a. what are the coordinates of b q1 (1,0) q2 (1,-1) q3 (1,-2) q4 (2,-4)
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Ответ:
Option 3: (1,-2)
Step-by-step explanation:
From the given figure it is clear that the vertices of triangle ABC are A(1,4), B(1,1), C(4,1).
If a figure dilated by the factor k and the center of dilation is point (a,b), then the rule of dilation is
The figure ABC dilated by the factor 2 and the center of dilation is point A(1,4).
The coordinates of B after dilation are
The coordinates of B after dilation are (1,-2).
Therefore, the correct option is 3.
Ответ:
9 units