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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