geometry

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Across
  1. 3. lines In the construction, you saw that the three perpendicular bisectors of a triangle are concurrent. line. a length between two points. When three or more lines
  2. 5. that extends without end in opposite directions. plane. A flat surface that goes on forever in all directions. point. an exact location in space. collinear.
  3. 6. Part of a line from the endpoint it continues forever in one direction. Vertical angles. Opposite angles and two lines intersect are always congruent
  4. 9. An angle that is 90 degrees (It makes a square in the corner). Image: Right Angle. Side.
  5. 10. A polygon with 4 sides and 4 angles. Image: Quadrilateral. Parallelogram.
  6. 11. A straight line from the center to the circumference of a circle or sphere.
  7. 15. angle obtuse triangle. triangle with an obtuse angle. Image: obtuse triangle. obtuse angle. angle whose measure is greater than 90 degrees but less than 180 degrees.
Down
  1. 1. Any ray, segment, or line that intersects a segment at it midpoint. It divides the segment into two equal parts at its midpoint.
  2. 2. lines 2 lines that never intersect (in same plane). Perpendicular Lines. 2 lines that intersect to form right angles (in same plane). Line segment
  3. 4. an area that is in the middle of some larger region. central. in or near an inner area. chord. a combination of three or more notes that blend
  4. 7. angle acute angle. Angle whose measure is between 0 degrees and 90 degrees. Image: acute angle. right angle. Angle whose measure is 90 degrees. Image: right angle.
  5. 8. A polygon with congruent sides and angles. regular tessellation. A regular polygon is repeated to fill a plane. rhombus. A parallelogram with all sides
  6. 12. The point of concurrency is the point where they intersect. polygon. a closed plane figure bounded by straight sides. A circle that contains all the vertices
  7. 13. of equal importance, rank, or degree. coplanar. lying in the same plane. cosine. ratio of the adjacent side to the hypotenuse of a right-angled
  8. 14. triangle. a triangle with two equal sides. line segment. part of a line with two endpoints. ray. A part of a line, with one endpoint, that continues