Across
1
Longest side of a right triangle
6
Parts per hundred
7
Total distance around a shape
10
U-shaped curve of a quadratic function
11
Mathematical statement of equality
Down
2
Exact correspondence on both sides
3
Number that divides evenly into another
4
Number divisible only by 1 and itself
5
Round shape with all points equidistant
8
Mathematical rule or equation
9
Result of multiplication
12
Rectangle with four equal sides