what are supplementary angles Share with your friends Share 0 Sanchita answered this two angles are supplementary if sum of their angles is 1800 2 View Full Answer Supriya Saloni answered this The angle whose mesure is equal to 180 degree is called sumplementry angle 0 Aditi answered this The angles whose measure=180 degree,they are known as suplementary anglesw. 0 Aditi answered this spelling error :anglesw=angles. 0 Aditya Nandy answered this Supplementary anglesare pairs ofanglesthat add up to 180degrees.The following digrams are of supplementary angles. 0 Esha answered this the angle which add and make 180 degree they are supplementry angle and linear pair are always supplementry 1 Bhavna Pawar answered this Supplementary anglesare pairs of angles that add up to 180degrees. 0 Bhavna Pawar answered this Supplementary anglesare pairs of angles that add up to 180degrees. 0 Yashodha Reddy answered this supplementary angles are those angles whose sum is 180 degree 0