Use the following figure to answer the question angle 1 and angle 3

< 1 and < 3 form a linear pairthat means when the 2 angles are added, they form a line. Angles that form a line, when added = 180 degrees. Angles, when added that equal 180 degrees are supplementary angles.

so ur answer is : < 1 and < 3 are supplementary angles

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