triangle A,B,C is similar triangle S,T,R . Gary builds the proportion below to solve for the missing side AB.

Explain what mistake Gary made and how you would correct it.
AB OVER BC = ST OVER SR

Question

triangle A,B,C is similar triangle S,T,R . Gary builds the proportion below to solve for the missing side AB.



Explain what mistake Gary made and how you would correct it. 
AB OVER BC = ST OVER SR

hartnn · Answer

when triangles are similar , "corresponding " sides are proportional
AB corresponds to ST
BC corresponds to TR
so can u now find the error?

hartnn · Answer

so it actually should be 
$\frac{AB}{BC}=\frac{ST}{TR}$

anonymous · Answer

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