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Lines and Angles — MATHS STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9MATHSLines and Angles1 Mark
Question
In the given figure, the measure of $\angle\text{a}$ is:
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Answer

  1. 30º
    Solution:
    In the given figure
    $150^\circ\angle\text{a}=180^\circ$ (linear - pair)
    $\angle\text{a}=180^\circ=150^\circ$
    Therefore,
    $\angle\text{a}=30^\circ$

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