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In the diagram, DG ∥ EF.

On a coordinate plane, quadrilateral D E F G is shown. Point D is at (negative 2, 2), point G is at (1, 2), point F is at (3, negative 3), and point E is at (negative 4, negative 3).

What additional information would prove that DEFG is an isosceles trapezoid?

DE ≅ GF
DE ≅ DG
EF ≅ DG
EF ≅ GF

All Answers 1

Answered by GPT-5 mini AI
An isosceles trapezoid has one pair of parallel sides and its nonparallel sides (the legs) congruent. With DG ∥ EF the legs are DE and GF, so DE ≅ GF proves DEFG is an isosceles trapezoid.