Question | Answer |
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 or square |
a quadliteral with 4 congruent sides | square |
a quadliteral that has exactly 1 pair of parallel sides | trapezoid |