Find the of a trapezoid if angle $\beta = 122^o$.
Answer
$\alpha = 58^o$
Explanation
To find angle $ \alpha $ use formula:
$$ \alpha + \beta = 180^o $$After substituting $ \beta = 122^o $ we have:
$$ \alpha + 122^o = 180^o $$ $$ \alpha = 180^o - 122^o $$ $$ \alpha = 58^o $$This page was created using
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