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प्रश्न
In the given figure, l || m and a line t intersects these lines at P and Q, respectively. Find the sum 2a + b.
उत्तर
From the above figure, we can say that
∠AQB = ∠FQP ......[Vertically opposite angles]
⇒ b = 132°
Since, l, m are parallel lines and t is transversal.
Therefore, ∠EPD = ∠PQF ......[Corresponding angles]
⇒ a = 132°
Now, 2a + b = 2 × 132° + 132°
= 264° + 132°
= 396°
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