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Lines and Angles — Maths STD 9 — Question

Gujarat BoardEnglish MediumSTD 9MathsLines and Angles1 Mark
MCQ
In the given figure, the measure of $\angle\text{a}$ is:
  • A
    150º
  • B
    30º
  • C
    15º
  • D
    50º
✓

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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