Mathematics
rorospence
8

Triangle ABC is transformed with the center of dilation at the origin. Pre-image: △ABC with vertices A(−3, 4), B(−1, 12), C(4, −2) Image: △A'B'C' with vertices A'(−0.6, 0.8), B'(−0.2, 2.4), C'(0.8, −0.4) What is the scale factor of the dilation that maps the pre-image to the image? Enter your answer in the box.

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helpplease151

The correct for this question is this one: 1:25  Pre-image △ABC has vertices A(−3, 4), B(−1, 12), C(4, −2) Final Image △A'B'C' has vertices A'(−0.6, 0.8), B'(−0.2, 2.4), C'(0.8, −0.4) Pre-image has an area of 34 square units Final Image has an area of 1.36 square units. Based from the area, dilation = 34 / 1.36 dilation = 25

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