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प्रश्न
In the case given below, find the value of x so that POQ is straight line
उत्तर
∵ POQ is a straight line
∴ ∠POL + ∠LOQ = 180°
⇒ `"7x"/11 + "x" = 180^circ`
⇒ `("7x" + "11x")/11 = 180°`
⇒ `"18x"/11 = 180°`
⇒ x = `(180° xx 11)/18` = 110°
∴ x = 110°
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