Question

problem 14: (first taught in lesson 38)
from the given statement, select the definition, property, postulate, or theorem that justifies the prove statement.
given: △abc ≅ △def and △abc ≅ △rst
prove: △def ≅ △rst

Explanation:

The transitive property of congruence states that if figure A is congruent to figure B and figure A is congruent to figure C, then figure B is congruent to figure C. Here, since $\triangle ABC\cong\triangle DEF$ and $\triangle ABC\cong\triangle RST$, by the transitive property, $\triangle DEF\cong\triangle RST$.

Answer:

Transitive Property of Congruence