Mathematics

Find the value of unknown x in the following diagram.

SOLUTION

In $\Delta PQR$,
$\angle RPQ+\angle PQR+\angle RPQ=180^o$ [By angle sum property of a triangle]
$\Rightarrow 90^o+30^o+x=180^o$
$\Rightarrow x+120^o=180^o$
$\Rightarrow x=180^o-120^o=60^o$.

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Subjective Medium Published on 09th 09, 2020
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