the cross-section of a canal is a trapezium in shape. if the canal is a 12m wide at the top ,8mwide a the bottom and the area of cross-section is 84m,find its depth
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area of a trapezium = 1/2 (b + a) h
where a and b are parallel sides and h is the altitude or distance between a and b.
In a canal, the floor of canal and the top water surface are parallel. Height of trapezium is the depth of canal.
84 meters = 1/2 ( 12 + 8) Height
Height = 168/20 = 8.4 meters
where a and b are parallel sides and h is the altitude or distance between a and b.
In a canal, the floor of canal and the top water surface are parallel. Height of trapezium is the depth of canal.
84 meters = 1/2 ( 12 + 8) Height
Height = 168/20 = 8.4 meters
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