##### Across

**8.**when two angles add up to 180 degrees.**9.**the shape becomes exactly like another when flipped onto itself.**12.**a circular movement on a graph.**13.**Example showing that a general statement is false.**14.**two rays that meet at a common place.**15.**the point that is the same distance from 2 points.**16.**a line that passes through two lines in the same plan.**18.**a triangle with one interior angle that is 90 degrees.

##### Down

**1.**more than 90 degrees but less than 80 degrees.**2.**the hypotenuse and one leg are both part of a right triangle.**3.**A function that reverses another function.**4.**a number that describes how steep it is.**5.**a shape on a graph but in a different size.**6.**three sides of a triangle are congruent.**7.**process of reasoning logically from given statements.**9.**a triangle that has three unequal sides.**10.**moving one shape on a graph to another.**11.**A location on a graph.**17.**a line that starts at a point and goes in one direction infinity.**19.**an angle less than 90 degrees.