Across
1
Amount of space an object occupies
2
System of ordered marks for measuring
3
Visual representation of data
5
Line touching circle at one point
7
Total distance around a shape
8
Proven mathematical statement
Down
1
Corner point of a polygon
2
Exact correspondence on both sides
4
Repeated addition
6
Part of a circle's circumference
9
Part of a line with two endpoints
10
Result of raising a number to an exponent
11
Closed shape with straight sides
12
Value that does not change