I met my secondary school maths teacher last week and he asked for the direction to Zenith Bank in Maitama.
I told him to make a 2pie turn, walk for about 1.8 metres (round that up to the nearest tens), you will then see a shop which is perpendicular to your right, make an obtuse angle turn and you will see the bank at a distance of about Xmetres of which x can easily be gotten from the log 4 base2 =2x.
Let him feel what I felt as a student during his math class in school. lol....................