Question

A plot of land in a form of a rectangular has a dimension 240 m ×180 m. A drainlet 10 M wide is dug all around it on outside and the earth dug out is evenly spread over the plot increasing its surface level 25 cm find the depth of drainlet .

Answer 1

L=240 B=180

area of plot =240×180=43200m².

area of plot land =Area of duging

43200=L×b×h

43200=25×10×h

43200=250h

43200/250=h

172.8=h.

answer.

hope you help with that.

Answer 2

Answer:

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