please write the full solution in understnable writing

Task 1. Estimation of physical parameters Estimate the area of each sub-catchment. Compute the total catchment area. Estimate the length of channels. This will be different for different catchments. For catchment A, you will need to estimate lengths of two channels (1 to 2 and 2 to outlet) whereas for catchments B & C, you only require one channel length (1 to outlet). Catchment B 1000 3 sub-catchments 1. & Outlet are outlets of the three sub-catchments Centroid of the catchment is located at 15030' E Longitude 33 20'S Latitude B Use the scale shown in the figure to estimate areas