1.

A catchment area consists of a square of side 4 km and a semicircle of 4 km diameter as shown below.If the rainfall values at these stations are P1=15 cm,P2=25 m,P3=30 cm and P4=20 cm. The average rainfall over the basin by the thiessen polygon method would be____cm (up to 1 decimal place).23.9

Answer» A catchment area consists of a square of side 4 km and a semicircle of 4 km diameter as shown below.





If the rainfall values at these stations are P1=15 cm,P2=25 m,P3=30 cm and P4=20 cm. The average rainfall over the basin by the thiessen polygon method would be____cm (up to 1 decimal place).
  1. 23.9


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