a math student is writing code to verify their project answers: sidelength ← 6 area ← (sqrt(3) / 4) * (sidelength * sidelength) that code relies on a built-in procedure sqrt() that calculates the square root of a number. after running the code, area stores 15.588457268119894. their classmates runs the same calculation on their own computer. their program results in an area of 15.58845726804. the two values are very close, but not quite the same. which of these is the most likely explanation for the difference?