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Jerkins 7th gr. Ch. 10 Vocabulary (Glencoe)

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Word
Description
Acute Angle   An angle with a measure greater than 0 degrees and less than 90 degrees.  
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Acute Triangle   A triangle having three acute angles.  
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Angle   Two rays with a common endpoint from an angle. The rays and vertex are used to name the angle.  
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Circle Graph   A type of statistical graph used to compare parts of a whole.  
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Complementary Angles   Two angles are complementary if the sum of their measures is 90 degrees.  
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Congruent Angles   Angles that have the same measure.  
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Congruent Segments   Sides of a polygon that having the same length.  
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Decagon   A polygon having ten sides.  
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Degrees   The most common unit of measure for angles. If a circle were divided into 360 equal-sides parts, each part would have an angle measure of 1 degree.  
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Equilateral Triangle   A triangle having 3 three congruent sides.  
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Heptagon   A polygon having seven sides  
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Hexagon   A polygon having six sides.  
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Indirect Measurement   Finding a measurement by using similar triangles and writing a proportion.  
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Isosceles Triangle   A triangle having at least two congruent sides.  
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Line of Symmetry   A line that divides a figure into two haves that are reflections of each other.  
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Line Symmetry   Figures that match exactly when folded in half have line symmetry.  
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Nonagon   A polygon having nine sides.  
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Obtuse Angle   Any angle that measures greater than 90 degrees but less than 180 degrees.  
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Obtuse Triangle   A triangle having one obtuse angle  
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Octagon   A polygon having eight sides.  
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Parallelogram   A quadrilateral with opposite side parallel and opposite side congruent.  
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Pentagon   A polygon having five sides.  
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Polygon   A simple closed figure in a plane formed by three or more line segments.  
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Quadrilateral   A closed figure having four sides and four angles.  
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Reflection   A type of transformation where a figure is flipped over a line of symmetry.  
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Regular Polygon   A polygon that has all sides and all angles congruent.  
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Rhombus   A parallelogram having four congruent sides.  
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Right Angle   An angle which measures exactly 90 degrees.  
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Right Triangle   A triangle having one right angle.  
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Scalene Triangle   A triangle having no congruent sides.  
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Similar Figures   Figures that have the same shape and congruent angels but not necessarily the same size.  
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Straight Angles   An angle that measures exactly 180 degrees.  
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Supplementary Angles   Two angles are supplementary if the sum of their measures is 180 degrees.  
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Tessellation   A repetitive pattern of polygons that fit together with no holes or gaps.  
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Transformation   A movement of a geometric figure.  
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Translation   One type of transformation where a geometric figure is slid horizontally vertically, or both.  
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Trapezoid   A quadrilateral with one pair of parallel sides.  
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Triangle   A polygon with three sides and three angles.  
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Vertex   A vertex of an angle is the common endpoint of the rays forming the angle.  
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Vertical Angles   Opposite angles formed by the intersection of two lines.  
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Created by: jerkins
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