Are you asking how to find the half of the square root of two????
scenod response to answer below because I don't want to get unearned points...
Do you mean how to find half of the square root of six to the second power??
okay well the square root of six is 2.4494897427831781 divided by 2 = 1.22474487139158905 to the second power is the quiotent times itself so all you ahve to do know is multipliy this current number by itself