Nigeria was formally divided into three regions under the constitution of? by Sunday | Jul 18 | Government WAEC | 0 comments A. 1922 B. 1946 C. 1951 D. 1954 E. 1960 Correct Answer: Option B – 1946 Users Also Read These:When was the treaty which formally established…Nigeria was a federal state under the constitution…The compressed regions and the space-out regions in…The arrangement by which a country is divided into…Nigeria became a federation under the 1954…