math cw

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Across
  1. 3. a polygon consisting of four sides
  2. 5. is an imaginary line that connects the eye of an observer to the object being observed
  3. 9. a parallelogram with all four sides congruent
  4. 13. if the corresponding angles of two triangles are congruent,then the triangles are similar
  5. 14. a trapezoid with congruent legs
  6. 16. a polynomial of degree 2 or second degree
  7. 17. defined as ax2+bx+c=0 in quadratic equation
  8. 18. mathematical sentence that contains equal sign
  9. 19. a plain figure
  10. 20. state that in a right triangle the square of the hypotenuse is equal to the sum of the legs
Down
  1. 1. two angles sharing a common side and vertex but no interior points in common
  2. 2. a parallelogram with four right angles
  3. 4. defined as f(x)= ax2+bx+c,where a,b,and c are real numbers and not equal to zer
  4. 6. the angle from he horizontal to the line of sight of the observer to the object below
  5. 7. angles formed by a base and the legs
  6. 8. a statement that needs to be proven before being accepted
  7. 10. is the angle from the horizontal to the line of sight of the observer to the object being observed
  8. 11. a polynomial equation of degree 1 or first degree
  9. 12. a quadrilateral with two pairs of of congruent and adjacent angles
  10. 15. a line segment joining two nonconsecutive vertices of a polygon