What is the scale factor of dilation?
1 over 2
1 over 3
1 over 4
1 over 5

 1 over 3

Step-by-step explanation:

The dilation is a transformation which produces similar figures.

The scale factor dilation is the ratio of the corresponding coordinates of the image and the pre-image.

In the given graph triangle PQR is dilated to form triangle P'Q'R', then the scale factor to the dilation is given by :-

Hence, the  scale factor of dilation =  1 over 3

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

54

step-by-step explanation: