Math VocabularyGeometry M5.C

Aligning withPennsylvania Department of Education

Assessment Anchorsand enVision Math Textbook

Topic 8

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parallel lines

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

* never intersect * always the same distance apart

examples:

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perpendicular lines

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

example:

* 2 lines OR 2 line segments OR 2 rays that intersect

* form right angles at point of intersection

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intersecting lines

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

example:

* 2 lines OR 2 line segments OR 2 rays that cross

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point

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

example: .D = point D

* identifies a location

* shown with a small, colored circle* usually named by a capital letter

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vertex

Geometry enVision Topic 8PA Assessment Anchor M5.C

(review Grades 3 & 4 Anchor Glossary)

example:

* a point where lines meet* a point where rays meet

* a point where edges of a polygon meet* plural form = vertices

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line

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

example:

* a straight path

* extends in both directions

* no endpoints

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line segment

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

example:

* part of a line

* has 2 endpoints

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ray

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

example:

* part of a line

* has one endpoint

* continues in ONE direction without end

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congruent

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

* having the same size and same shape* congruent angles have same measure

* congruent line segments have same length

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polygon

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

* a closed plane figure

* having 3 or more straight sides

examples:

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quadrilateral

Geometry enVision Topic 8

PA Assessment Anchor M5.C

(review Grades 3 & 4 Anchor Glossary)

* a closed plane figure (polygon)

* has 4 sides

examples:

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parallelogram

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

* a closed plane figure (polygon)

* has 4 sides (quadrilateral)

* pair of opposite sides are parallel

* pair of opposite sides are congruent

example:

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rhombus

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

* a closed plane figure (polygon)

* has 4 sides (quadrilateral)

* opposite sides are parallel (parallelogram)

* 4 sides are congruent (equal in length)

example:

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trapezoid

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

* a closed plane figure (polygon)

* has 4 sides (quadrilateral)

* has only ONE pair of parallel sidesexample:

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quadrilateral chart

Geometry enVision Topic 8PA Assessment Anchor M5.C(review Grades 3 & 4 Anchor

Glossary)

quadrilateral

trapezoid parallelogram

rectangle

square

rhombus