Across
1
System of ordered marks for measuring
5
Number less than zero
6
Rectangular array of numbers
7
Collection of distinct elements
8
Line crossing from corner to corner
9
Number greater than zero
10
Part of a circle's circumference
Down
2
Longest side of a right triangle
3
U-shaped curve of a quadratic function
4
Line touching circle at one point
7
Part of a line with two endpoints