Guys, let me say something on this coz this is my line/passion
If given the dimensions in feet e.g 50 by 100, always divide by 10 then mutiply by 3 to know the size in metres. e.g 50 feet =(50/100)*3 =5*3=15metres
If given the size in metres, always multiply by 10 then divide by 3 to determine the size in feet e.g 15 metres= (15*10)/3 = 150/3 = 50 feet
1)For a rectangular plot, 50 by 100 refers to 50 feet by 100 feet which is equivalent to 15 meters by 30 meters and is also equal to 450 square metres. This is what people refer to as 1/8 of an acre though slightly less due to the provision for access road. An acre will therefore give you 8 such plots with an access road. A quarter is double this size (Double the surface area).
2) The plot may not be rectangular, thus always take the surface area of the plot irrespective of the shape of the plot, for instance, an 1/8 will measure approximately 450 square metres (15m by 30m)
3) 1 Hactare=10,000 square metres and 2.5 acres make a hactare
4) 1 acre is equivalent to 0.404Ha, 1/2 acre =0.202 Ha, 1/4 acre=0.101 and an 1/8=0.05Ha. Once an acre is subdivided, the measurements reduce slightly because of the access roads for instance the 1/8=50 by 100 feet=15 by 30 metres =450/10,000 which becomes 0.045Ha
5) When buying land, visit the place, take a tape measure and determine the surface area in Square metres then divide by 10,000 to know whether what is indicated on the title deed/Certificate of lease is correct (Usually appears in Ha.)
6) If it is a Certificate of Lease as opposed to Title Deed for freehold land, check how many years are remaining on the lease before committing your money, morgage companies are very particular on this
7) Finally, you get twelve(12) 40*80 plots, thus 1 and 1/4 acres will give you 15 40*80 plots.
All the best guys, I think I have givem my two cents worth of contribution