Question

@camerondoherty @Nurali @juanpabloJR

Answer 1

triangle ABC is similar to triangle STR. Gary builds the proportion below to solve for the missing side AB.

Answer 2

\[\frac{ AB }{ BC } = \frac{ ST }{ SR }\]

Answer 3

Explain what mistake Gary made and how you would correct it.

Answer 4

Hmmm looks to me the proportion is wrong and it should be AB/BC and ST/TR if you look at the proportion you can tell something's up.

Answer 5

If the two triangles are similar then sides AB and ST are similar, BC and TR are similar and AC and SR are similar. So, for the equation to be correct you would have AB/BC = ST/TR