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Triangle PQR is transformed to triangle P'Q'R'. Triangle PQR has vertices P(8, 0), Q(6, 2), and R(-2, -4). Triangle
P'Q'R' has vertices P'(4, 0), Q'(3, 1), and R'(-1, -2).

Part A: What is the scale factor of the dilation that transforms triangle PQR totriangle 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 P"Q"R" congruent? Explain your answer. (2 points)

Sagot :

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