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Construction of an Angle using Protractor

In figure, de...

Question

In figure, determine the value of x

80^{o}

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60^{o}

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50^{o}

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30^{o}

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Solution

The correct option is C $30^{o}$
Sum of all angles about a point is equal to $360^{o}$ .
$=> 3 x + 3 x + x + 150^{o} = 360^{o}$
$=> 7 x = 210^{o}$
$=> x = 30^{o}$

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