Across
1
Exact correspondence on both sides
5
Number divisible only by 1 and itself
6
Steepness of a line
7
System of ordered marks for measuring
8
Proven mathematical statement
Down
1
Result of addition
2
Three-sided polygon
3
Part of a circle's circumference
4
Number with digits after a point
6
Collection of distinct elements
9
Line crossing from corner to corner
10
Visual representation of data
11
U-shaped curve of a quadratic function
12
Reference line in a graph