How do you justify GF ≅ GF as a step in a proof? Explain. Since GF is a segment shared by both triangles, the Reflexive Property of Congruence can be used to justify GF ≅ GF

Since GF is in both triangles, △CFG is an isosceles triangle and the SSS Triangle Congruence Theorem can be used to justify GF ≅ GF.

Since GF is the same length in both triangles, the SAS Triangle Congruence Theorem can be used to justify GF ≅ GF

Since GF is on a leg of both triangles, the HL Triangle Congruence Theorem can be used to justify GF ≅ GF.