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GEOMETRY 6.G.1 VOCABULARY Mrs. Thompson Level 1 Review Words • Side: A line bounding a geometric figure: one of the faces forming the outside of an object • Vertex: On an angle or polygon, the point where 2 sides intersect • Perimeter: the distance around a polygon • Perpendicular: lines that intersect to form right angles • Parallel: Lines in a plane that do not intersect • Congruent: having the same size and shape Polygon • A closed plane figure formed by 3 or more line segments that intersect only at their endpoints(vertices). Examples Non-Examples Classify Polygons Quadrilateral • A Four(4) sided polygon Example Non-Example Special Quadrilaterals Triangles Parts of shapes Parts of a triangle defined • Height: a perpendicular distance from the base to the opposite vertex (or side in a triangle) • Leg: In a right triangle, the sides that include the right angle; in an isosceles triangle, the pair of congruent sides • Base: a side of a polygon • Hypotenuse: In a right triangle, the side opposite the right angle Need to know CONCEPTS • Dimension: The length, width, or height of an object • Area: The number of square units needed to cover a given surface • Composing: to make or put together • Decomposing: to take apart