Across
1
Rectangle with four equal sides
4
Power to which a number is raised
5
Lines that never intersect
7
Proven mathematical statement
10
U-shaped curve of a quadratic function
Down
1
System of ordered marks for measuring
2
Result of addition
3
Longest side of a right triangle
6
Number that divides evenly into another
8
Rectangular array of numbers
9
Symbol representing unknown value
11
Split into equal parts
12
Amount of space an object occupies
13
Round shape with all points equidistant