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प्रश्न
In the figure given, l, m and n are parallel lines, and the lines p and q are also parallel. Find the values of a, b and c.
बेरीज
उत्तर
Since, lines l, n are parallel and q is transversal.
Therefore, 6a = 120° ......[Corresponding angles]
⇒ a = `120^circ/6`
⇒ a = 20°
Also, lines p, q are parallel and n is transversal
Therefore, 4c = 120° ......[Corresponding angles]
⇒ c = `120^circ/4`
⇒ c = 30°
Again, lines m, n are parallel and p is transversal
Therefore, 4c = 3b ......[Corresponding angles]
⇒ b = `(4c)/3`
⇒ b = `(4 xx 30^circ)/3`
⇒ b = 40°
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