Across
1
Line touching circle at one point
4
Number with digits after a point
5
Result of raising a number to an exponent
7
Line crossing from corner to corner
10
Longest side of a right triangle
Down
1
Proven mathematical statement
2
Mathematical rule or equation
3
Part of a line with two endpoints
6
Closed shape with straight sides
8
Math using letters for unknown values
9
Sum divided by count