Across
1
Total distance around a shape
6
Part of a circle's circumference
8
Divisible by two
10
Amount of space an object occupies
Down
1
Parts per hundred
2
Result of multiplication
3
Value that does not change
4
Number divisible only by 1 and itself
5
Exact correspondence on both sides
7
Line crossing from corner to corner
9
Result of raising a number to an exponent