Question

If DE || GF what is m DFG?

Answer 1

m<DFG = 55°

Explanation:

m<FDE + 125° = 180° (Linear angle pair)

m<FDE = 180° - 125° (Subtraction property of equality)

m<FDE = 55°

m<DFG = m<FDE (alternate interior angles are congruent)

m<DFG = 55° (substitution)