what is the perimeter of a square with area p ^ 2 / 16 ?
area of square , ( side ) ^ 2 = ( p / 4 ) ^ 2 therefore side of the square = p / 4 perimeter of square = 4 * side = 4 * ( p / 4 ) = p answer is c .
multiply(sqrt(power(const_pi, divide(2, 16))), const_4)