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geometry
| Question | Answer |
|---|---|
| angles that have the same vertex and a common side but no interior points in common | adjacent angle |
| two non-adjacent angles on opposite sides of two lines | alternate interior angles |
| two angles whose measures total 90 degrees | complementary angles |
| two angles whose measures total 180 degrees | supplementary angles |
| non-adjacent angles formed by intersecting lines | vertical angles |
| a flat surface that goes on forever in all directions | plane |
| a figure that cannot be traced with the same starting and stopping points | open figure |
| a figure in a plane that can be traced with the same starting and stopping points | closed figure |
| a closed figure made of line segments that do not cross | polygon |
| a point that is common to two sides of a polygon or an angle | vertex |
| a line segment that connects one vertex to another vertex | diagonal |
| an exact location in space | point |
| a set of points that form a straight path extendending in opposite directions without end | line |
| a part of a line that has one endpoint and continues without end in the other direction | ray |
| a part of a ray or line that has two end points | line segment |
| line segments that have the same length | congruent lines |
| a five sided shape | pentagon |
| a three sided shape | triangle |
| a six sided shape | hexagon |
| a four sided shape | quadrilateral |
| a ten sided shape | decagon |
| lines tht meet or cross each other | intersecting |
| lines that never intersect | parallel lines |
| lines that intersect to form a 90 degree angle | perpendicular lines |
| a trangle that has no congruent sides | scalene |
| a triangle with at least 2 congruent sides | isosceles |
| a triangle with 3 congruent sides | equilateral |
| a triangle with three acute angles | acute triangle |
| a triangle with 1 right angle | right triangle |
| a triangle with 1 obtuse angle | obtuse triangle |
| a quadliteral with both pairs of opposite sides parallel and congruent | parallelogram |
| a parallelogram with 4 congruent sides | rhombus |
| a parallelogram with 4 right angles | a rectangle/square |
| a quadliteral with 4 congruent sides | square |
| a quadliteral that has exactly 1 pair of parallel sides | trapezoid |
| a quadliteral that has 2 pairs of congruent adjacent sides | kite |
| a closed figure having all points the same distance from the center | circle |
| a ine segment that has endpoints on a circle | chord |
| a chord that passes through the center of a circle | diameter |
| a line segment that connects the center of a circle and a point on the circle. Its length is half the diameter | radius |
| two points on a circle and the part of the circle between the two points | arc |
| an angle whose vertex is the center of a circle | central angle |
| a region enclosed by the two radii and an arc joining the endpoints of the radii | sector |
| formula for adding all sides (2L+2W) | perimeter |
| formula to multipy length times width (LxW) | area |
| formula (LxWxH) | volume |
| formula (1/2BH) | area of a triangle |
| formula PiD (pi is 3/14) | circumference |
| have the same shape, but not the same size | similar |
| moves a figure in a straight line without turning or flipping it | translation |
| turns a figure about a point | rotation |
| creates a mirror image of a figure across a line | reflection |
| a picture | image |