Across
1
Corner point of a polygon
4
Parts per hundred
5
Rectangle with four equal sides
7
Amount of space an object occupies
8
Distance from center to edge of circle
11
Number less than zero
12
System of ordered marks for measuring
Down
2
Mathematical rule or equation
3
Total distance around a shape
5
Result of addition
6
Longest side of a right triangle
9
Divisible by two
10
Steepness of a line
13
Middle value in an ordered dataset