Height of the kite from the ground = 50 feet Angle at which the kite is flying = 45 degrees Let us assume the length of the string = x feet Then x = 50 * (square root 2) = 50 * 1.414 = 70.7 feet From the above deduction, it can be concluded that the correct option among all the options that are given in the question is the second option or option "b".
