Lesson 1: Dilations Answers

Dilation was performed on a rectangle. How does the image relate to the pre-image? Select three options.The image is a reduction because 0 < n < 1.The side lengths of the image are two-fifths the size of the corresponding side lengths of the pre-image.The angles of the image are two-fifths the size of the angles of the pre-image.The center of dilation is at point Q.The base of the image is two-fifths the size of the base of the pre-image.

Which statements justify that the dilation of triangle STU is an enlargement increasing its size by the magnitude of the scale factor? Select two options.

Line segment AB is dilated to create line segment A'B' using point Q as the center of dilation.

Point C is the center of dilation. Line segment B A is dilated to create line segment B prime A prime. The length of C A is 4. The length of A A prime is 16.

The perimeter of ΔABC is 13 cm. It was dilated to create ΔA'B'C'.

Triangle TUV was dilated to create triangle T'U'V' using point A as the center of dilation.

Line segment XY is dilated to create line segment X'Y' using point T as the center of dilation.

Triangle JKL was dilated using the rule . The image, triangle J'K'L', is the result of the dilation.

Rectangle WXYZ was dilated to create W'X'Y'Z'.

Triangle ABC was dilated using the rule DO,4. Triangle A'B'C' is the result of the dilation.