Across
1
Corner point of a polygon
5
Amount of space an object occupies
6
Longest side of a right triangle
7
Closed shape with straight sides
8
Proven mathematical statement
9
Number that divides evenly into another
Down
2
Power to which a number is raised
3
Divisible by two
4
Value that does not change
10
Math using letters for unknown values
11
Single numeral from 0 to 9
12
System of ordered marks for measuring