Across
1
Visual representation of data
2
Total distance around a shape
3
System of ordered marks for measuring
4
Round shape with all points equidistant
5
Three-sided polygon
Down
2
U-shaped curve of a quadratic function
3
Part of a line with two endpoints
6
Rectangle with four equal sides
7
Mathematical statement of equality
8
Longest side of a right triangle
9
Part of a circle's circumference