Geometry

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Across
  1. 3. either of a pair of angles that have the same vertex and are on opposite sides of two intersecting straight lines. each of the pairs of opposite angles made by two intersecting lines.
  2. 5. a number is always equal to itself. Reflexive property of equality.
  3. 9. the space usually measured in degrees between two intersecting lines or surfaces at or close to the point where they meet. a figure which is formed by two rays or lines that shares a common endpoint.
  4. 10. Two sides and an included angle are congruent. If two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, the triangles are congruent.
  5. 12. one of a pair of angles on opposite sides of a line intersecting two other lines and outside the two intersected lines. the angles formed when a transversal intersects two coplanar lines.
  6. 13. the conceptual operation of turning a system around an axis. a type of transformation that takes each point in a figure and rotates it a certain number of degrees around a given point.
  7. 14. corresponding parts of congruent triangles are congruent. and tells us if two or more triangles are congruent, then their corresponding angles and sides are congruent as well.
  8. 15. two angles and an included side are congruent. When two angles and a non-included side of a triangle are equal to the corresponding angles and sides of another triangle, then the triangles are said to be congruent.
  9. 16. identical in form; coinciding exactly when superimposed. superposable so as to be coincident throughout.
  10. 19. the line segment that joins two vertices in a shape or two-dimensional figure. a side in math is the line that connects two points of a shape.
  11. 20. two or more angles that are identical to each other. the measure of these angles is equal to each other.
Down
  1. 1. A reflection is a mirror image of the shape.An image will reflect through a line, known as the line of reflection.
  2. 2. Three Pairs of Congruent Sides.all three sides of one triangle are equal to all three corresponding sides of another triangle, the two triangles are considered to be congruent.
  3. 4. any pair of angles each of which is on the same side of one of two lines cut by a transversal and on the same side of the transversal. the angles that are formed when two parallel lines are intersected by the transversal.
  4. 6. an image and its pre-image before a translation. A motion in geometry in which an object is moved along a straight line without turning or changing the size or shape.
  5. 7. a line that splits an angle into two equal angles. Bisector means the thing that bisects a shape or an object into two equal parts.
  6. 8. if they have the same length.and their corresponding angles are equal in measure.
  7. 11. the middle point of a line segment. It is equidistant from both endpoints, and it is the centroid both of the segment and of the endpoints. It bisects the segment.
  8. 17. the hypotenuse and any one leg of a right triangle are congruent. the longest side of the triangle.
  9. 18. two angles and a side opposite them are congruent.if two angles and any side of one triangle are congruent to two angles and any side of another triangle, then the triangles are congruent.