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Geometry
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Undefined Terms of Geometry: point line and plane
Collinear Points: Points on the same line
Coplanar Points: points in the same plane
Space: The set of all points
Segment: the part of line AB that contains points a and b an all points in between.
Congruent Segments: Segments with the same measure
Midpoint: a point that separates a Segment into two congruent segments
Segment Bisector: a line that contains the midpoint of a segment
Ray: the part of line AB that contains point a and all other points othe same side of a as b.
Angle: Two noncollinear rays with a common endpoint
Acute angle: an angle whose measure is between 0 and 90 degrees
Right angle: an angle whose measure is 90 degrees
Obtuse Angle: an angle whose measure is between 90 and 180 degrees
Angle Bisector: An angle that divides an angle into two congruent angles
Congruent Angles: two angles with the same measure
Adjacent Angles: two coplanar angles with a common vertex a common side but no interior points
Linear Pair: two angles that are both adjacent and congruent
Complementary Angles: Two angles whose measures add up to 90 degrees
Supplementary Angles: Two angles whose measures add up to 180 degrees
Perpendicular lines: two lines that form a right angle
Polygon: closed figure whose sides are all segments
Concave Polygon: a polygon where a line containing a side of a polygon doesn't contain the point of the interior of the polygon
Convex Polygon: a polygon where no line that contains a side of the polygon contains an interior point
Triangle: A three sided polygon
Quadrilateral: A four sided polygon
Pentagon: A five sided polygon
Hexagon: a six sided polygon
Heptagon: a seven sided polygon
Octagon: an eight sided polygon
Heptagon: a nine sided polygon
Decagon: a ten sided polygon
Undecagon: an eleven sided polygon
Dodecagon: a twelve sided polygon
Regular Polygon: a polygon with all its sides and angles congruent
Perimeter: the sum of the lengths of a polygon
Parallel Lines: coplanar lines the do not intersect
Skew Lines: non-coplanar that do not intersect
Acute Triangle: a triangle with three acute angles
Obtuse Triangle: a triangle with exactly one obtuse angle
Right angle: a triangle with exactly one right angle
Equiangular Triangle: a triangle with all its angles congruent
Scalene Triangle: an triangle with no congruent sides.
Isosceles Triangle: a triangle with two congruent sides.
Equilateral Triangle: a triangle with all sides congruent.
Congruent Triangle: two triangles with all sides and angles congruent
Perpendicular Bisector: one that is both perpendicular and contains the midpoint of the line
Concurrent Lines: three or more lines that intersect at a single point.
Circumcenter: The point of concurrency of the three perpendicular lines of a triangle
Incenter: the point of concurrency of the three angle bisectors
Median: A segment from the vertex to the midpoint of the opposite side.
Centroid: the point of concurrency of the three medians of a triangle
Altitude: a segment from the the vertex of a triangle to the line contains the opposite side
Orthocenter: the point of comcurrency of the three altitudes of a triangles.
Similar Polygons: two polygons with all their angles congruent and sides proportional
Midsegment of a triangle: a segment that connects to the endpoint of two sides of a triangle
Diagonal: a segment that connects two non consecutive vertices of a polygon.
Parallelogram: a quadrilateral with exactly two pairs of opposite sides
Rectangle: an equiangular parallelogram
Rhombus: a parallelogram with consecutive sides congruent
Square: An equilateral parallelogram
Kite: a quadrilateral with two distinct pairs of consecutive congruent sides.
Trapezoid: a quadrilateral with exactly one pair of parallel sides.
Isosceles Trapezoid: a trapezoid with its legs congruent
Midsegment of a trapezoid: a segment that connects the midpoints of the legs of a trapezoid
Circle: the set of all points in a plane that are equidistant from a given point
Chord: a segment whose end points are points of a circle
Diameter: a chord that contains the center of the circle
Radius: a segment with one point of the circle and the center of a circle
Central angle of a circle: an angle whose vertex is the center and whose sides contain two consecutive vertices of the of the polygon.
Minor arc: an arc that is less than a semicircle
Major arc: an arc that is greater than a semicircle
Semicircle: an arc that measures 180 degrees
Circumference: the distance around a circle
Pi: the ratio of the circumference of a circle two its diameter
Length of an arc: a fraction of the circumference of a circle
Inscribed Angle: an angle whose vertex is a point of a circle and whose sides contain chords of a circle
Geometry
Across:4. | an eleven sided polygon | 6. | the part of line AB that contains points a and b an all points in between. | 8. | Two noncollinear rays with a common endpoint | 9. | a chord that contains the center of the circle | 11. | a segment with one point of the circle and the center of a circle | 12. | A three sided polygon | 14. | The set of all points | 16. | the ratio of the circumference of a circle two its diameter | 18. | a quadrilateral with exactly two pairs of opposite sides |
| 20. | two coplanar angles with a common vertex a common side but no interior points | 22. | the sum of the lengths of a polygon | 24. | a segment whose end points are points of a circle | 25. | a nine sided polygon | 26. | an eight sided polygon | 27. | the point of concurrency of the three angle bisectors | 29. | Segments with the same measure | 30. | two polygons with all their angles congruent and sides proportional | 31. | two triangles with all sides and angles congruent |
| | Down:1. | point line and plane | 2. | a triangle with all its angles congruent | 3. | a ten sided polygon | 5. | an angle whose vertex is the center and whose sides contain two consecutive vertices of the of the polygon. | 6. | Two angles whose measures add up to 180 degrees | 7. | the point of comcurrency of the three altitudes of a triangles. | 10. | an angle whose measure is between 0 and 90 degrees | 12. | a quadrilateral with exactly one pair of parallel sides. |
| 13. | Two angles whose measures add up to 90 degrees | 15. | points in the same plane | 17. | a quadrilateral with two distinct pairs of consecutive congruent sides. | 19. | the part of line AB that contains point a and all other points othe same side of a as b. | 21. | a seven sided polygon | 23. | a point that separates a Segment into two congruent segments | 28. | A segment from the vertex to the midpoint of the opposite side. |
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© 2013
PuzzleFast.com, Noncommercial Use Only
Geometry
Across:4. | an eleven sided polygon | 6. | the part of line AB that contains points a and b an all points in between. | 8. | Two noncollinear rays with a common endpoint | 9. | a chord that contains the center of the circle | 11. | a segment with one point of the circle and the center of a circle | 12. | A three sided polygon | 14. | The set of all points | 16. | the ratio of the circumference of a circle two its diameter | 18. | a quadrilateral with exactly two pairs of opposite sides |
| 20. | two coplanar angles with a common vertex a common side but no interior points | 22. | the sum of the lengths of a polygon | 24. | a segment whose end points are points of a circle | 25. | a nine sided polygon | 26. | an eight sided polygon | 27. | the point of concurrency of the three angle bisectors | 29. | Segments with the same measure | 30. | two polygons with all their angles congruent and sides proportional | 31. | two triangles with all sides and angles congruent |
| | Down:1. | point line and plane | 2. | a triangle with all its angles congruent | 3. | a ten sided polygon | 5. | an angle whose vertex is the center and whose sides contain two consecutive vertices of the of the polygon. | 6. | Two angles whose measures add up to 180 degrees | 7. | the point of comcurrency of the three altitudes of a triangles. | 10. | an angle whose measure is between 0 and 90 degrees | 12. | a quadrilateral with exactly one pair of parallel sides. |
| 13. | Two angles whose measures add up to 90 degrees | 15. | points in the same plane | 17. | a quadrilateral with two distinct pairs of consecutive congruent sides. | 19. | the part of line AB that contains point a and all other points othe same side of a as b. | 21. | a seven sided polygon | 23. | a point that separates a Segment into two congruent segments | 28. | A segment from the vertex to the midpoint of the opposite side. |
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© 2013
PuzzleFast.com, Noncommercial Use Only