math crossword

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Across
  1. 3. a straight line or plane that bisects an angle
  2. 6. two angles that have the same vertex and a side in common.
  3. 8. a straight line passing from side to side through the centre of a body or figure, especially a circle or sphere.
  4. 9. a straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point.
  5. 13. a line segment extending from the center of a circle or sphere to the circumference or bounding surface.
  6. 15. the point opposite to and farthest from the base of a geometrical figure
  7. 16. a fact or a rule written with mathematical symbol used to represent a number, can be used outside of math,
  8. 17. a symbol that represent a number
  9. 20. the line segment joining two points on a curve
  10. 21. a formula used to calculate remaining sides when when two angles and a side are known
  11. 22. the amount of space in a certain 3D object
  12. 23. to figure out the size, amount or degree of something
  13. 27. having or participating in the same relationship such as kind, degree, position,
  14. 28. the longest side of a right-angled triangle, opposite the right angle.
  15. 29. a relation between a set of inputs having one output each
  16. 30. the whole outer boundary of a figure or area
  17. 31. a branch of math that focuses on the measurement and relationship of lines, angles, surfaces, solids and points
Down
  1. 1. having the same shape
  2. 2. a shape with 6 angles
  3. 4. the length of any great circle, the intersection of the sphere with any plane passing through its centre
  4. 5. a shape that has 5 angles
  5. 7. The unit of measure for an angle
  6. 10. the part of math where letters and other general symbols are used to represent numbers in formulas and equations
  7. 11. a number whose whole number part and the fractional part is separated by a decimal point.
  8. 12. a parallelogram with four equal sides and sometimes one with no right angles.
  9. 14. the outside part or uppermost layer of something.
  10. 18. a math problem
  11. 19. a formula used when two angles and one side are given or two sides and a non-included angle are given
  12. 24. lines that intersect at a right 90 degrees angle.
  13. 25. another word for shape
  14. 26. a statement which has been proved true by a special kind of logical argument called a rigorous proof.