Across
1
Space between two intersecting lines
3
Proven mathematical statement
5
Three-sided polygon
8
Mathematical statement of equality
9
Closed shape with straight sides
10
Part of a circle's circumference
11
Difference between highest and lowest values
12
Amount of space an object occupies
14
Round shape with all points equidistant
Down
2
Result of raising a number to an exponent
4
Exact correspondence on both sides
6
Line touching circle at one point
7
Total distance around a shape
13
Line crossing from corner to corner