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Math 7 Unit 3 - Geometry Vocabulary
vocabulary flashcards
16
Mathematics
7th Grade
01/29/2014

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Cards

Term

alternate

 

exterior angles

 

Definition

 

When parallel lines are crossed by a transversal, we are the pair of angles on opposite sides of the transversal, but outside the parallel lines.

 

Term

 

alternate

 

interior angles

 

Definition

 

When parallel lines are crossed by a transversal, we are the pair of angles on opposite sides of the transversal, but inside the parallel lines.

 

Term
corresponding sides
Definition

 

We are the sides on congruent (same size & shape) or similar (same shape) figures that match.

 

Term

 

equilateral triangle

 

Definition

 

I am a triangle whose sides are all the same length and whose angles are all 60O.

 

Term

 

isosceles triangle

 

Definition

 

I am a triangle with both two equal sides and two equal angles.

 

Term

 

scalene triangle

 

Definition

 

I am a triangle with three unequal sides.

 

 

 

Term

 

skew lines

 

Definition

 

We are two or more nonparallel lines in space (3-D) that do no intersect.

 

Term

 

vertical angles

 

Definition

 

We are the angles opposite one another at the intersection of two lines.

 

Term

 

transversal

 

Definition

 

I am a line that intersects two parallel lines to form eight angles.

 

Term

 

complimentary angles

 

Definition

 

We are two angles that add up to 900 (a right angle). 

 

Term

 

supplementary

 

angles

 

Definition

 

We are two angles that add up to 1800 .

 

Term

 

adjacent angles

 

Definition

 

We are two angles that share a common side and a common vertex.

 

Term

 

parallel lines

 

Definition

 

We are two lines on a plane

(2-D) that never meet.  We are always the same distance apart.

 

Term

 

perpendicular lines

 

Definition

 

We are two lines that intersect to form a 900 angle.

 

Term

 

corresponding angles

 

Definition

 

We are the angles in matching corners, formed when two lines are crossed by a transversal.

 

Term

 

congruent angles

 

Definition

 

We are angles with the same measure in degrees.

 

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