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Two triangles are shown.
A student is trying to prove that △ABC is congruent to △PQR. The student claims that △ABC will map onto △PQR by a sequence of rigid motions only if the length of the line segment PQ is 5 centimeters. Is the student's claim correct? Explain your answer.

Two triangles are shown A student is trying to prove that ABC is congruent to PQR The student claims that ABC will map onto PQR by a sequence of rigid motions o class=