Across
1
Visual representation of data
2
Exact correspondence on both sides
4
Three-sided polygon
7
Space between two intersecting lines
8
Distance from center to edge of circle
Down
2
Part of a line with two endpoints
3
Result of raising a number to an exponent
5
Rectangular array of numbers
6
Math using letters for unknown values
9
Number divisible only by 1 and itself
10
Repeated addition
11
Steepness of a line