Mathematics

# In the figure $\angle ABC={80}^{o}$. Find $\angle DGC$ and $\angle DEF$, given $AB||DE$ and $BC||EF$.

##### SOLUTION
Given $\angle ABC=80^\circ$
$AB\parallel DE$, $BC$ is transversal line,
Hence,
$\angle ABC=\angle DGC=80^\circ$

$BC\parallel EF$, $ED$ is transversal line,
Hence,
$\angle DEF=\angle DGC=80^\circ$

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Subjective Medium Published on 09th 09, 2020
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