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