Across
1
Mathematical statement of equality
5
U-shaped curve of a quadratic function
7
Number divisible only by 1 and itself
8
Round shape with all points equidistant
9
Longest side of a right triangle
10
Power to which a number is raised
Down
2
Split into equal parts
3
Closed shape with straight sides
4
Line crossing from corner to corner
6
Math using letters for unknown values
11
System of ordered marks for measuring