##sqrt42## lies between ##color(green)(6 and 7##
We know that ##sqrt42## will lie between ##sqrt36## and ##sqrt49##
And ##sqrt 36 = 6## ; ##sqrt 49 = 7##
Hence we can be sure that ##sqrt42## lies between ##color(green)(6 and 7##
##sqrt42## lies between ##color(green)(6 and 7##
We know that ##sqrt42## will lie between ##sqrt36## and ##sqrt49##
And ##sqrt 36 = 6## ; ##sqrt 49 = 7##
Hence we can be sure that ##sqrt42## lies between ##color(green)(6 and 7##