##### Across

**2.**7. The measure of how heavy something is**4.**5. A value that does not change**7.**4. A segment joining two points on a circle**9.**Two rays sharing the same endpoint (vertex)**11.**9. A line that crosses/intersects two or more lines**12.**4. Objects and figures that have the same size and shape**13.**2. A step by step procedure by which an operation can be carried out**16.**The bottom of a shape or three-dimensional object, what an object rests on**17.**7. An equation that is true for variables of any value**18.**10. The difference between the maximum and minimum in a set of data**19.**1. A straight line with only one endpoint that extends infinitely

##### Down

**1.**3. A polynomial equation with two terms usually joined by a plus or minus sign**3.**6. All whole numbers, positive or negative, including zero**5.**Line segments joined together to form a closed figure**6.**9. A ratio or fraction with the denominator 100**8.**6. a graph that uses bars that equal ranges of values**10.**5. A line is where two faces meet in a three-dimensional structure**13.**1. The branch of mathematics that substitutes letters for numbers to solve for unknown values**14.**8. The total distance around the outside of a polygon**15.**8. A letter used to represent a numerical value in equations and expressions