SOLUTION: If triangle A'B'C' is the image of ABC after a dilation using a scale factor of 2 with respect to the origin, how many square units are in the area of triangle A'B'C'? The measure
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Question 660149: If triangle A'B'C' is the image of ABC after a dilation using a scale factor of 2 with respect to the origin, how many square units are in the area of triangle A'B'C'? The measures are A(-4, 7), B(3, -2), and C(8, -2). Answer by KMST(5328) (Show Source):
You can put this solution on YOUR website! Triangle ABC has a horizontal side BC of length which we can take as the base, with a height of The area of triangle ABC is
Dilating the triangle by a factor of ,
dilates every side (and base and height) by a factor of ,
and it increases the area by a factor of .
So the area of the dilated triangle is
