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26 terms

Unit 6 Geometry Set 2

STUDY
PLAY
Polygon
a closed figure with straight lines
Triangle
a polygon with 3 sides
Angles of a triangle
the sum of the measures of the angles of any triangle is 180 degrees
Scalene
a polygon with no sides equal
Isosceles
a polygon with 2 sides equal
Equilateral
a polygon with all sides equal
Acute triangle
a triangle with all 3 angles less than 90 degrees
Equianagular
a polygon with all angles equal
Obtuse triangle
a triangle with one obtuse angle
Right triangle
a triangle with one right angle
Quadrilateral
a polygon with 4 sides
Parallelogram
a quadrilateral with opposite sides parallel
Rectangle
a parallelogram with 4 right angles
Square
a rectangle with all sides congruent
Rhombus
a parallelogram with all sides congruent
Trapezoid
a quadrilateral with one pair of parallel sides
Kite
a quadrilateral with neighboring sides congruent
Pentagon
a polygon with 5 sides
Hexagon
a polygon with 6 sides
Heptagon
a polygon with 7 sides
Octagon
a polygon with 8 sides
Nonagon
a polygon with 9 sides
Decagon
a polygon with 10 sides
Dodecagon
a polygon with 12 sides
Icosagon
a polygon with 20 sides
Congruent polygons
polygons that are the same size and same shape