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The exterior angle PRS of triangle PQR is $105^o$. If $\angle Q=70^o$, find $\angle P$. Is $\angle PRS > \angle P$.
Given:
The exterior angle PRS of triangle PQR is $105^o$.
$\angle Q=70^o$.
To do:
We have to find $\angle P$.
Solution:
We know that,
The exterior angle theorem states that the measure of each exterior angle of a triangle is equal to the sum of the opposite and non-adjacent interior angles.
Therefore,
$\angle PRS=\angle PQR+\angle RPQ$
$105^o=70^o+\angle RPQ$
$\angle RPQ=105^o-70^o$
$\angle RPQ=35^o$
As we can see, $\angle PRS > \angle P$.
The measure of $ \angle P$ is $35^o$.
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