Solution:-
In the table of cosines, look for a value (≤ .6951) which is sufficiently close to .6951.
We find the value .6947 occurs in the horizontal line beginning with 46o and in the mean difference, we see .6951 – .6947 = .0004 in the column of 2’.
So we get, θ = 46o’ – 2’ = 45o 58’.