Geography - Hydraulic Radius
From the Integrating Mathematical Problem Solving project by Mathematics in Education and Industry (MEI), this activity for post-16 students demonstrates that the efficiency of a river can be measured using the hydraulic radius; this depends on the cross-sectional area of the river and the wetted perimeter of the cross-section. Topic areas covered are:
• Area
• Perimeter
• Spearman's rank correlation coefficient
• Statistical hypothesis testing
Please note that some of the files in this resource require use of Geogebra software.
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Downloads
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Hydraulic radius teacher notes 17.27 KB
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Hydraulic radius 648.5 KB
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Hydraulic radius 13.95 KB
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Semi-circle river - geogebra 3.08 KB
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Triangle river - geogebra 4.58 KB
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Hydraulic radius - geogebra 5.37 KB
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Spearman's rank 1.08 MB
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Spearman's rank - no ties 42.5 KB
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Spearman's rank - ties 16.98 KB
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Spearman's rank - 5 52.5 KB