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geometery terms
Question | Answer |
---|---|
Point | A location in space - a dot on a piece of paper |
Line | Connects two points and continues forever in both directions |
Line Segment | Two endpoints connected by a set of points making a segment. |
Perpendicular Lines | Line Segments that intersect (cross) at an angle of 90° |
Parallel Lines | Line segements that never intersect.stay the same distance apart |
Right Angle | An angle that measures 90° |
Acute Angle | An angle that measures less than 90° |
Obtuse Angle | An angle that measures more than 90° |
Vertex | Point at which two line segments intersect (forming an angle) |
Scalene Triangle | A triangle with all three sides with different lengths |
Isosceles Triangle | A triangle with two equal length sides |
Equilateral Triangle | A traingle with all three sides of equal length |
Radius | Distance from center of a circle to the edge |
Diameter | A line segment through a circle passing through the circle's center |
Chord | A line segment joining two points on a curve. |
Arc | Part of a curve- outside of the circle |
Ray | Starts at an endpoint and continues in one direction forever |
quadrilateral | 4 sided polygon |
pentagon | 5 sided polygon |
hexagon | 6 sided polygon |
heptagon | 7 sided polygon |
octagon | 8 sided polygon |
nonogon | 9 sided polygon |
decagon | 10 sided polygon |
degrees in a triangle | 180 |
degrees in a quadrilateral | 360 |
degrees in a pentagon | 540 |
degrees in a hexagon | 720 |
degrees in a heptagon | 900 |
degrees in a octagon | 1080 |
two angles in a triangle are 39 and 29, what is the measure of the third angle? | 112 |