crossword puzzle

1. The ______ of a set of data is the middle value when the data is arranged in numerical order.
3. The _____ of an event is the probability of the event not occurring.
6. The ______ of a line is a value that describes how steep the line is.
7. The _______ of a number is a value that, when multiplied by itself, gives the original number.
9. The _______ of a function is the set of all possible input values for the function.
10. The ____ of a circle is a line segment that connects any two points on the circle and passes through the center.
12. The ____ of an equation is the value of the variable that makes the equation true.
13. All corresponding angles are ______.

2. The ratio of any two corresponding sides in two ________ triangles is always the same.
4. The _____ of a circle is a straight line that touches the circle at exactly one point.
5. If one angle of a triangle is equal to one angle of the other triangle and the sides including these angles are ________, then the triangles are similar.
8. The probability of an event which is impossible to occur is 0. Such an event is called _________.
11. The _____ of a line is the ratio of the change in the y-coordinates to the change in the x-coordinates.