the cross section of a Canal is a trapezium with the width of top ten metres and the width that the bottom 6 m and depth 5 metres the flow of water in a Canal is 5 kilometre per 1 hour find the flow of water in kilolitres per hour?
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Area of cross-section of the canal = 1/2 x the sum of the two sides x height
= 1/2 (10+6) x 5
= 40 m²
The flow of water in the Canal is 5 kilometre per 1 hour = 5000m per hour
Volume of water flowing in 1 hour = 40 x 5000 = 200,000m³
1 m³ = 1 kilolitre
Therefore, the rate of flow = 200,000 kilolitre per hour
= 1/2 (10+6) x 5
= 40 m²
The flow of water in the Canal is 5 kilometre per 1 hour = 5000m per hour
Volume of water flowing in 1 hour = 40 x 5000 = 200,000m³
1 m³ = 1 kilolitre
Therefore, the rate of flow = 200,000 kilolitre per hour
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