Across
1
Repeated addition
5
Comparison of two quantities
6
Longest side of a right triangle
8
Result of raising a number to an exponent
9
System of ordered marks for measuring
11
Visual representation of data
Down
2
Single numeral from 0 to 9
3
Rectangle with four equal sides
4
Total distance around a shape
7
Result of addition
9
Collection of distinct elements
10
Divisible by two
12
Part of a circle's circumference