The shape of a piece of land is shown. To estimate the area of the land, a surveyor takes measurements at intervals of 50m, perpendicular to the straight portion with the results shown (the dimensions being in metres). Estimate the area of the land in hectares (1ha = 10⁴m²) using mid-ordinate rule.

Transcribed Image Text:

140 160 200 190 180 130 50 50 50 50 50 50 140 160 200 190 180 130 50 50 50 50 50 50