Monday, May 15

In class topic: ratios between similar figures. If a and b are the lengths of two corresponding dimensions between two similar figures, then we can say that all corresponding side lengths will be in the ratio

dfrac{a}{b}

Their area or surface area ratios will be

left(dfrac{a}{b}right)^2 = dfrac{a^2}{b^2}

Their volumes will be in the ratio

left(dfrac{a}{b}right)^3 = dfrac{a^3}{b^3}

Assignment: 11.5 on p. 595: 1-6, 10-17