Across
1
U-shaped curve of a quadratic function
5
Longest side of a right triangle
7
Three-sided polygon
8
Sum divided by count
9
Result of raising a number to an exponent
10
Distance from center to edge of circle
11
Rectangular array of numbers
Down
2
Line touching circle at one point
3
System of ordered marks for measuring
4
Symbol representing unknown value
6
Result of addition
12
Steepness of a line
13
Result of multiplication