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Shapes Vocabulary
Definition of terms related to shapes
12
Mathematics
5th Grade
11/18/2010

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Cards

Term
Skew lines
Definition
Any lines in space that do not intersect and are not parallel
Term
Vertical angle
Definition
One of two opposite and equal angles formed by the intersection of two
Term
Tangent
Definition
In contact along a single line or element, as a plane with a cylinder
Term
Adjacent
Definition
Just before, after, or facing
Term
Perpendicular
Definition
Meeting a given a line or surface at right angles
Term
Radius
Definition
A straight line extending from the center of a circle or sphere to the circumference or surface: half the diameter of a circle
Term
Circumference
Definition
The perimeter of a circle
Term
Congruent
Definition
Coinciding at all points when superimposed
Term
Scalene
Definition
Having three unequal sides
Term
Isosceles
Definition
Having two equal sides
Term
Reflex angle
Definition
An angle greater than 180° and less than 360°
Term
Regular polygon
Definition
All of its angles are equal in measure
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