Across
1
Result of raising a number to an exponent
4
Longest side of a right triangle
5
Space between two intersecting lines
7
Three-sided polygon
11
Number divisible only by 1 and itself
Down
2
Repeated addition
3
Rectangle with four equal sides
6
Line crossing from corner to corner
8
Round shape with all points equidistant
9
Corner point of a polygon
10
Parts per hundred