Two angles are supplementary, if one of them is $49^{o}$ . Find the other angle?

139^{o}

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131^{o}

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141^{o}

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135^{o}

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Solution

The correct option is B $131^{o}$
Since, two angles are supplementary their sum is $180^{o}$
$∠ 1 + ∠ 2 = 180^{o}$
$49^{o} + ∠ 2 = 180^{o}$ (As one of the angle is $49^{o}$
$∠ 2 = 180^{o} - 49^{o}$
$= 131^{o}$

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Two angles are supplementary, if one of them is 49o. Find the other angle?

The correct option is B 131oSince, two angles are supplementary their sum is 180o∠1+∠2=180o49o+∠2=180o (As one of the angle is 49o∠2=180o−49o=131o

Two angles are supplementary, if one of them is $49^{o}$ . Find the other angle?

The correct option is B $131^{o}$
Since, two angles are supplementary their sum is $180^{o}$
$∠ 1 + ∠ 2 = 180^{o}$
$49^{o} + ∠ 2 = 180^{o}$ (As one of the angle is $49^{o}$
$∠ 2 = 180^{o} - 49^{o}$
$= 131^{o}$