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Question
In the case given below, find the value of x so that POQ is straight line
Sum
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Solution
5.5x + 15° = 180°
⇒ 5.5x = 180° - 15°
⇒ 5.5x = 165°
⇒ `"18x"/11 = 180°`
⇒ x = `165/5.5 = (165 xx 10)/55` = 30°
∴ x = 30°
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