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OpenStudy (anonymous):
What are the values of a and b?
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OpenStudy (anonymous):
OpenStudy (kinggeorge):
\[{20\over21}={a\over20}\longrightarrow a={400\over21}\] \[{29 \over 21}={b \over 20} \longrightarrow b={580\over21}\]Because you know the triangles are similar.
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