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Chap11 Vocabulary

Geometry

QuestionAnswer
Lateral Face any surface of a polyhedron other than the base.
Prism is a 3D figure with 2 congruent based and the other faces are rectangles.
Volume is the measurement of space that a solid figure occupies.
Trapezoid is a quadrilateral with at least 1 pair of parallel sides.
Equilateral Triangle triangle that has 3 congruent sides.
Polygon is a closed figure with 3 or more line segments.
Quadrilateral is a polygon with 4 sides and 4 angles.
Right Triangle A triangle with one 90-degree angle.
Scalene Triangle A triangle with no congruent sides.
Square A special parallelogram with 4 congruent sides and 4 right angles.
Unit Cube has a length, width, and height of 1 unit.
Polyhedron A solid figure with faces that are polygons.
Nonagon A polygon with 9 sides and 9 angles.
Base Usually, a polygon used to name or measure a 3D figure.
Pyramid A solid figure with a polygon base, and triangular faces that meet at a common vertex.
Acute Triangle A triangle that has 3 angles less than 90 degrees.
Octagon A polygon with 8 sides and 8 angles.
Regular Polygon A polygon that has all sides congruent and all angles congruent.
Heptagon A polygon with 7 sides and 7 angles.
Congruent Having the same size and same shape.
Isosceles Triangle A triangle that has 2 congruent sides.
Decagon A polygon with 10 sides and 10 angles.
Obtuse Triangle A triangle that has one angle that measures larger than 90 degrees.
Parallelogram A special trapezoid with opposite sides that are congruent and parallel.
Rectangle A special parallelogram with 4 right angles and opposite sides that are congruent.
Created by: mleonard196
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