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34 Cards in this Set
- Front
- Back
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Intersecting lines
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Two lines that meet at a point |
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Parallel lines |
Two lines in the same plane that do not intersect |
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Perpendicular lines |
Two lines that intersect to form four right angles |
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Polygon |
A geometric figure made up of three or more line segments that meet at endpoints |
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Congruent |
The same |
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Regular polygon |
A polygon with all sides equal in length and all angles equal in measure |
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Triangle |
A three sided polygon |
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Quadrilateral |
A flat shape with four straight sides |
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Rectangle |
a parallelogram with four right angles |
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Square |
A parallelogram with four right angles and 4 congruent sides |
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Trapezoid |
A quadrilateral with exactly one pair of parallel sides |
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Parallelogram |
A quadrilateral with two pairs of parallel sides |
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Rhombus |
A parallelogram with four congruent sides |
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Pentagon |
A five-sided polygon |
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Hexagon |
A six-sided polygon |
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Heptagon |
A seven-sided polygon |
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Octagon |
An eight-sided polygon |
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Nonagon |
A nine-sided polygon |
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Decagon |
A ten-sided polygon |
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Vertex |
where line segments meet, a point |
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Cube |
A box-shaped solid object that has six identical square faces |
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Rectangular prism |
A solid object which has six rectangle-shaped faces |
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Obtuse angle |
An angle whose measure is between ninety and 180 degrees |
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Acute angle |
An angle whose measure is less than ninety degrees |
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Right angle |
An angle which is equal to ninety degrees |
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Straight angle |
An angle whose measure is exactly 180 degrees |
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Equilateral triangle |
A triangle with three congruent sides |
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Isosceles triangle |
A triangle with at least two congruent sides |
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Scalene triangle |
A triangle with no congruent sides |
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Right triangle |
A triangle with one right angle |
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Pyramid |
A solid formed by polygons that has one base. That base can be any polygon, and the other polygons are triangles |
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Cone |
A solid with one circular base |
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Cylinder |
A solid with two congruent circular bases that lie in parallel planes. |
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Sphere |
A solid formed by all points in space that are the same distance from a fixed point called the center. |
