The supplement of the following angle- ${7 0^{\circ}}^{}$ is :

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11 0^{\circ}

18 0^{\circ}

12 0^{\circ}

1 40^{\circ}

answer is A.

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Detailed Solution

Concept: If the total of two angles is 180 degrees, they are said to be supplementary angles. Two further perspectives are: 1) When one of its angles is an acute angle and the other is an obtuse angle (angle greater than 90 degrees) (less than 90 degree) 2) If the angles meet at right angles.
${"mathml":"<math class="image_resized" style="width:271px;height:120px"><span style="font-family:$ Hence, the correct answer is option 1.

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