Across
1
Space between two intersecting lines
3
Lines that never intersect
4
Rectangle with four equal sides
5
Part of a circle's circumference
6
Distance from center to edge of circle
7
Three-sided polygon
Down
1
Math using letters for unknown values
2
Line crossing from corner to corner
3
Result of raising a number to an exponent
4
Steepness of a line
8
Mathematical statement of equality