Across
1
Rectangle with four equal sides
4
Amount of space an object occupies
8
Repeated addition
10
Number with digits after a point
11
Proven mathematical statement
12
Reference line in a graph
Down
2
Result of raising a number to an exponent
3
Space between two intersecting lines
5
Number greater than zero
6
Divisible by two
7
Rectangular array of numbers
9
System of ordered marks for measuring