The correct steps for the construction of 45o:
(i) 60o
(ii) 120o
(iii) 90o by bisecting (i) and (ii)
(iv) Bisect 90o to get 45o
the sum of the intermediate angles = 180° + 90° = 270°
The intermediate angles that are to be constructed for constructing an angle of 45o are:
(i) 60o
(ii) 120o
(iii) 90o by bisecting (i) and (ii)
(iv) Bisect 90o to get 45o
Hence the statement is true.