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grade 10 · GEOM-005

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Select a precise justification for a step rather than relying on appearance.

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Try with a hintFresh problem · seed 207908911

Two lines intersect. Why are the opposite angles congruent?

given→opposite angles→?

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State exactly what is given in the diagram.

Choose an answerTriangle Sum Theorem.Vertical angles are congruent.Segment Addition Postulate.Definition of midpoint.Reflexive Property of Congruence.

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Math Lab is a working name for Ready Rung's separate math-learning product. Guided success and independent evidence are reported separately.