Trapezoid \(A’B’C’D\) was created by dilating trapezoid \(ABCD\) using \(D\) as the center of dilation.

A large trapezoid A'B'C'D' comprised of smaller shapes on a grid. The blue shape ABCD is a smaller trapezoid. Triangle Q in top right corner. Quadrilateral P in lower right corner. 

1. What was the scale factor of the dilation?
2. Based on the scale factor, how many copies of \(ABCD\), including the original, should fit inside \(A’B’C’D\)?
3. How can you see your answer to these questions in the diagram?

Each image shows a quadrilateral in a plane. The quadrilateral has been dilated using a center above the plane and a scale factor between 0 and 1. Estimate the scale factor that was used for each dilation.

A quadrilateral in a plane. The quadrilateral has been dilated using a center above the plan. Quadrilateral appears to be about more than halfway between the point and the closest quadrilateral.

A quadrilateral in a plane. The quadrilateral has been dilated using a center above the plan. Quadrilateral appears to be about less than halfway between the point and the closest quadrilateral.

A quadrilateral in a plane. The quadrilateral has been dilated using a center above the plan. Quadrilateral appears to be about halfway between the point and the closest quadrilateral.

Select the solid whose cross-sections are dilations of some two-dimensional shape using a point directly above the shape as a center and scale factors ranging from 0 to 1.

Select all figures for which at least one cross-section is a circle.