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Math 6/7: Unit 15

Quadrilaterals & Congruence

Congruent Something that has the same size and shape.
Segments A section of a line bounded by two endpoints.
Angle The amount of turning between two rays meeting at a vertex.
Polygon A plane shape having 3 or more straight sides.
Regular Polygon A polygon where all sides and angles are equal.
Symmetry When one half of an object is a mirror image of the other half.
Sides A straight line joining the vertices of a polygon.
Lines of Symmetry The place an object can be divided so that each half is a mirror image.
Quadrilateral A polygon with 4 sides and 4 angles.
Bisect To divide into 2 equal sections.
Parallelogram A quadrilateral whose opposite sides are parallel and congruent.
Rectangle A parallelogram with 4 right angles.
Rhombus A parallelogram with 4 congruent sides.
Square A rectangle with 4 congruent sides and 4 right angles.
Trapezoid A quadrilateral with one pair of parallel sides.
Isosceles Trapezoid A trapezoid where the legs are congruent.
Diagonals A line joining 2 non-adjacent vertices.
Corresponding Sides Sides that are in the same position on different figures.
Created by: PRO Teacher scash