Using a 3D printer, Emery makes the chocolate mold shown by copying different shapes. Complete parts a and b below.
D and I
B and D
b. Describe a composition of rigid motions that maps the congruent shapes.
A and Care congruent by a reflection across the vertical line through the center of the mold.
centers
H. A and H
A and C
3
D
G
B
E
are congruent by a 180° rotation about the midpoint of the vertical line segment between their
are congruent by a horizontal translation.
are congruent by a reflection across the vertical line through the center of the mold followed by a vertical translation.
are congruent by a 45° rotation about the center of the first object, followed by a translation to
are congruent by a glide reflection across the horizontal line through the center of the mold.
the right, and then a translation down.
are congruent by a 45° rotation about the center of the first object, followed by a translation to the left, and then a translation down.