Answer: delation
Explanation:
The three sorts of unbending changes are interpretation, revolution, and reflection. Each of these changes can be utilized to demonstrate that two triangles are compatible, as long as the comparing sides and points are compatible after the change.
Be that as it may, there's one change that cannot be utilized to demonstrate coinciding between two triangles, which may be a enlargement. A expansion may be a change that changes the estimate of an protest, but does not protect separations or points. Subsequently, in case we expand one triangle, we cannot ensure that the comparing sides and points of the two triangles will be compatible.