Mathematics, 12.10.2019 14:10, gizmo50245

Which transformation preserves only angle measurement? why is it not considered to be a rigid transformation?
a) dilation; a rigid transformation preserves shape and size.
b) rotation; a rigid transformation preserves shape and orientation.
c) reflection: a rigid transformation preserves shape and orientation.
d) translation; a rigid transformation preserves shape and side length.

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Which transformation preserves only angle measurement? why is it not considered to be a rigid trans...