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2. (02.05 MC)
Triangle POR is transformed to triangle P'QR. Triangle POR has vertices P(8, O), Q(6, 2), and R(-2, -4). Triangle PQR has vertices P(4, 0), Q'(3, 1), and R(-1, -2).
Plot triangles PQR and P'Q'R* on your own coordinate grid.
Part A: What is the scale factor of the dilation that transforms triangle PQR to triangle P'Q'R? Explain your answer. (4 points)
Part B: Write the coordinates of triangle P*Q"R* obtained after P'Q'R' is reflected about the y-axis. (4 points)
Part C: Are the two triangles PQR and PrQ*R* congruent? Explain your answer.

Sagot :

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