He triangles shown are congruent by the SSS congruence theorem.
 3 rigid transformations are shown. Triangle A B C is first rotated about point C to form triangle A prime B prime C. Triangle A prime B prime C is then shifted down to form triangle A double-prime B double-prime C prime. Triangle A double-prime B double-prime C prime is reflected across A double-prime B double-prime to form triangle A double-prime B double-prime C double-prime
 The diagram shows the sequence of three rigid transformations used to map TriangleABC onto TriangleA"B"C". What is the sequence of the transformations?
 rotation, then reflection, then translation 
 rotation, then translation, then reflection
 translation, then reflection, then rotation
 translation, then rotation, then reflection