5thperiod_Sperry

Across

1. A polyhedron whose one face is a polygon and the other faces are triangles with one common vertex.
6. A line segment between two points on the circle or sphere which passes through the center
7. when one figure fits exactly on top of the other through simple translation and/or rotation, then these two figures are the same size and/or shape.
12. An angle with a measure between 0° and 90°
13. The figure formed by two rays from the same initial point.
15. Also known as unknown.
16. The boundary line of a circle or length of perimeter.
20. Both have common endpoint that form a line
23. The longest side opposite the right angle in a right triangle.
27. Two angles that share the same vertex and have one side in common between them
28. The boundary of a closed geometric figure.
29. Also called half-line. It is a straight line that extends from a point.
31. One of the two pairs of equal angles formed when two straight lines intersect each other.
32. A space figure with two parallel polygonal bases that are the same shape and the same size.
33. A tubular solid with a circular base.
36. Lying on the same straight line.
38. An angle that measures 90°
39. Part between two points called endpoints.
40. A true statement, which does not require to be proved.
41. The distance from the center of a circle to any point on its circumference.
43. A geometric object that has no dimension and is used to indicate a location.
44. Points or lines that all lie in the same plane.
46. A line segment joining two adjacent vertices in a polygon
47. Also called non-coplanar lines. They are straight lines that are neither parallel, nor intersecting.

Down

1. A closed plane figure bounded by at least three line segments.
2. A unit of measure used to measure the magnitude of an angle.
3. A pair of numbers that describe the position of a point on a plane by using the horizontal and vertical distances from the two axes.
4. A geometrical object that is straight, infinitely long and infinitely thin.
5. An angle that is between 90° and 180°.
8. Having one thing on either side of it.
9. The surface included within a closed figure, measured by the number of square units needed to cover the surface.
10. At an angle of 90° to a given line, plane, or surface.
11. A flat surface that can extend forever in length and width but has no thickness.
14. If the sum of the measures of two angles is 90°
16. When at least one of the interior angles is greater than 180°
17. An additional geometric figure that is constructed to assist in solving a problem or producing a proof.
18. curved outward or toward the eye. A set of points any of whose chords do not include any point that is not in the set.
19. A planar surface of a solid figure.
21. A general conclusion proposed to be proved upon the basis of certain given hypotheses or assumptions
22. Two angles that add up to 180°.
24. A solid bounded by at least four polygonal faces. The pairs of faces meet along their edges.
25. A point at which the two rays of an angle meet or the intersection point of two sides of a plane figure.
26. Opposite of each other formed by two intersecting lines.
30. The point on a line that divides the given line segment into two congruent parts.
32. A set of logical arguments used to deduce or prove a mathematical theorem from a set of axioms.
34. A straight line or a plane that divides a line, a plane, an angle, or a shape into two equal parts.
35. A solid formed by rotating a right triangle around one of its legs.
37. The two supplementary adjacent angles formed by two intersecting lines
42. A perfect round ball. A closed solid bounded by a surface on which all points are equidistant from a central point called the center.
45. Side by side and having the same distance continuously between them.