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Geometry vocabulary

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Kelly Dillon
Kelly Dillon

This document defines various geometry terms over three sentences or less per term. It covers basic shapes and their properties such as points, lines, segments, rays, angles, triangles, quadrilaterals, symmetry, and transformations. Some key terms include acute, obtuse, and right angles, parallel and perpendicular lines, congruent and similar figures, and translations, reflections, and rotations.

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Geometry Vocabulary Example 1) Point ______________ in space that is __________ with a _________ letter 2) Line series of _________ that extend in two _____________ directions without________. 3) Segment two ______________ and all the points on the ________ between the endpoints. 4) Ray _______ endpoint and all the points of a line on one _______ of the endpoint. 5) Collinear Points Points that if_______________, form a ____________ line. 6) Non-Collinear Points Points that if connected do _____form a straight_______. 7) Plane flat _____ dimensional surface.
8) Intersecting Lines ______ lines that cross at __________one________. 9) Parallel Lines ______ lines that have ____ points in_________. 10) Skew Lines _________ that are not ____________ and do not_____________. Skew lines lie in different___________. 11) Angle two ________ that connect at a common____________. 12) Vertex The ___________endpoint of the two ________of an_________. 13) Degrees _______ used to measure_________. Use the (°)__________for degrees. 14) Acute Angle ________ that measures less than _____. 15) Right Angle angle that __________ exactly _____.
16) Obtuse Angle _________ that measures between ______ and ________. 17) Perpendicular Lines Lines that ________________to form __________ angles. 18) Complementary Angles The ________ of the measure of ______ or more __________ equals _________. 19) Supplementary Angles The _________ of the measure of two or more ______________ equals __________. 20) Vertical Angles _____________ that are formed by two _____________________ lines. 21) Congruent Angles ______________ with ___________ measures. 22) Transversal ________ that crosses ________ or more __________ at different ___________.
23) Interior Angles ____________ that are on either side of a ___________________ between a pair of ____________. 24) Exterior Angles ____________ that are on either side of a transversal _______________ of a pair of ____________. 25) Acute Triangle Includes _______ angles that measure ________ than _________. 26) Obtuse Triangle Includes _______ angle that measures _________ than ________. 27) Right Triangle Includes _______ angle that measures exactly ________. 28) Congruent Segments ___________________ that have the ___________ length.
29) Equilateral Triangle includes _________ sides of _________ length. (3 _______________ sides). 30) Isosceles Triangle includes at least ______ ________________ sides. 31) Scalene Triangle Has ______ ___________________ sides. 32) Polygon ______________ figure that has _________ or more line ______________ that do not cross. 33) Quadrilateral a _______________ with ________ sides. 34) Trapezoid quadrilateral that has exactly one _________ of _______________ lines.
35) Parallelogram quadrilateral that has ________ pairs of _______________ lines. 36) Rectangle Quadrilateral that has ________ ________ angles. 37) Rhombus quadrilateral that has ________ ___________________ sides. 38) Square quadrilateral that has _________ right ___________ and ________ congruent sides. 39) Congruent Figures have the same ___________ and _________. 40) Similar Figures Have the same __________ but not necessarily the __________ _________.
41) Line Symmetry ________ can be drawn through a __________ to create a __________ image 36) Translation __________; moves every point of a figure the same ______________ and same ________________. 37) Reflection __________ a figure over a _________ and creates a __________ image of the _______________. 38) Rotation _________ a ____________ about a point of _________________.

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Geometry vocabulary

  • 1. Geometry Vocabulary Example 1) Point ______________ in space that is __________ with a _________ letter 2) Line series of _________ that extend in two _____________ directions without________. 3) Segment two ______________ and all the points on the ________ between the endpoints. 4) Ray _______ endpoint and all the points of a line on one _______ of the endpoint. 5) Collinear Points Points that if_______________, form a ____________ line. 6) Non-Collinear Points Points that if connected do _____form a straight_______. 7) Plane flat _____ dimensional surface.
  • 2. 8) Intersecting Lines ______ lines that cross at __________one________. 9) Parallel Lines ______ lines that have ____ points in_________. 10) Skew Lines _________ that are not ____________ and do not_____________. Skew lines lie in different___________. 11) Angle two ________ that connect at a common____________. 12) Vertex The ___________endpoint of the two ________of an_________. 13) Degrees _______ used to measure_________. Use the (°)__________for degrees. 14) Acute Angle ________ that measures less than _____. 15) Right Angle angle that __________ exactly _____.
  • 3. 16) Obtuse Angle _________ that measures between ______ and ________. 17) Perpendicular Lines Lines that ________________to form __________ angles. 18) Complementary Angles The ________ of the measure of ______ or more __________ equals _________. 19) Supplementary Angles The _________ of the measure of two or more ______________ equals __________. 20) Vertical Angles _____________ that are formed by two _____________________ lines. 21) Congruent Angles ______________ with ___________ measures. 22) Transversal ________ that crosses ________ or more __________ at different ___________.
  • 4. 23) Interior Angles ____________ that are on either side of a ___________________ between a pair of ____________. 24) Exterior Angles ____________ that are on either side of a transversal _______________ of a pair of ____________. 25) Acute Triangle Includes _______ angles that measure ________ than _________. 26) Obtuse Triangle Includes _______ angle that measures _________ than ________. 27) Right Triangle Includes _______ angle that measures exactly ________. 28) Congruent Segments ___________________ that have the ___________ length.
  • 5. 29) Equilateral Triangle includes _________ sides of _________ length. (3 _______________ sides). 30) Isosceles Triangle includes at least ______ ________________ sides. 31) Scalene Triangle Has ______ ___________________ sides. 32) Polygon ______________ figure that has _________ or more line ______________ that do not cross. 33) Quadrilateral a _______________ with ________ sides. 34) Trapezoid quadrilateral that has exactly one _________ of _______________ lines.
  • 6. 35) Parallelogram quadrilateral that has ________ pairs of _______________ lines. 36) Rectangle Quadrilateral that has ________ ________ angles. 37) Rhombus quadrilateral that has ________ ___________________ sides. 38) Square quadrilateral that has _________ right ___________ and ________ congruent sides. 39) Congruent Figures have the same ___________ and _________. 40) Similar Figures Have the same __________ but not necessarily the __________ _________.
  • 7. 41) Line Symmetry ________ can be drawn through a __________ to create a __________ image 36) Translation __________; moves every point of a figure the same ______________ and same ________________. 37) Reflection __________ a figure over a _________ and creates a __________ image of the _______________. 38) Rotation _________ a ____________ about a point of _________________.