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Printable 9th grade geometry vocabulary worksheet with fill-in-the-blank items on lines, angles, planes, and key geometry definitions.
Worksheet

Geometry Vocabulary: Introduction

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About:

This printable geometry vocabulary worksheet provides 9th graders with ten fill-in-the-blank items on foundational geometry concepts. The word bank includes parallel, perpendicular, coplanar, postulate, theorem, and congruent. Covers basic definitions and relationships between lines, angles, rays, and planes. Suitable for vocabulary review, homework, or classwork at the start of a geometry unit.

Subject:
Math
Topic:
Geometry
Grade Level:
9th Grade
Updated September 2025

Word Bank

  • Colinear
  • congruent
  • coplanar
  • parallel
  • perpendicular
  • Plane
  • postulate
  • Theorem
  • Vortex

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