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Printable 9th grade geometry vocabulary matching worksheet with eight terms including scale factor, isosceles triangle, and AA theorem.
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Geometry Vocabulary: Similar Figures and Triangles

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This printable geometry matching worksheet for 9th graders covers eight key terms: proportional, isosceles triangle, dilate, scale factor, SSS theorem, vertical angles, triangle sum theorem, and AA theorem. Students match each term to its definition. Suitable for vocabulary review, quiz preparation, or classwork in a unit on similarity and triangle properties.

Subject:
Math
Topic:
Geometry
Grade Level:
9th Grade
Updated February 2026

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