what is the square root of 324 ?
"a square root of a number is a number times itself equals the original number . ex ) the square root of 81 is 9 because 9 times itself ( 9 ) equals the original number ( 81 ) . 18 * 18 = 324 324 divided by x = 18 x = 18 ( a ) 18"
circle_area(divide(324, multiply(const_2, const_pi)))