What's the scale factor of the dilation

so the scale factor of the image is

Step-by-step explanation:

We have to find the scale factor of figure A'B'C'D' which is the dilated image of quadrilateral ABCD.

Now we choose a line segment AB and compare it with line segment A'B'.

Since length of AB = 4 units

and length of A'B'  = 1 units

So ratio of AB and A'B' =

so the scale factor of the image is

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it