Triangle PQR is transformed to the similar triangle P′Q′R′.
A coordinate grid is shown from negative 10 to 0 to positive 10 on both x- and y-axes at increments of 1. A triangle PQR has P at ordered pair 4, negative 4, Q at 8, negative 4, R at 4 and negative 8. A polygon P prime Q prime R prime has P prime at ordered pair 2, negative 2, Q prime at ordered pair 4, negative 2, R prime at ordered pair 2, negative 4.
What is the scale factor of dilation? (1 point)
1 over 2
1 over 3
1 over 4
1 over 5
The scale factor of dilation is given by the ratio of the corresponding side lengths of the two triangles.
The length of PQ is 8 - 4 = 4, and the length of P'Q' is 4 - 2 = 2.
Therefore, the scale factor of dilation is (2/4) = 1/2.
Answer: 1 over 2