Ohio Mathematics Academic Content Standards (2001)
Use proportional reasoning and apply indirect measurement techniques, including right triangle trigonometry and properties of similar triangles, to solve problems involving measurements and rates.
Mathematical Processes Standard
Apply mathematical knowledge and skills routinely in other content areas and practical situations.
Principles and Standards for School Mathematics
Number and Operations Standard
Understand numbers, ways of representing numbers, relationships among numbers, and number systems
understand and use ratios and proportions to represent quantitative relationships;