Answer
$a \approx2.18$, $c \approx6.39$, $B =70^\circ$.
Work Step by Step
Given $b=6, A=20^\circ$, we have $a=b\ tanA=6tan20^\circ\approx2.18$, $c=b\ secA=6sec20^\circ\approx6.39$, $B=90^\circ-A=70^\circ$.
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