Ratio and proportion One of the angle of pair of supplementary angle is 120 degree. find the ratio of pair of supplementary angles.​

2 : 1

Step-by-step explanation:

Supplementary angles are two angles whose measures add up to 180°

If one of the angle = 120°

The other angle = sum of supplementary angle - one of the angle

= 180° - 120°

= 60°

The other angle = 60°

ratio of pair of supplementary aangle = 120° : 60°

= 120° / 60°

= 2/1

= 2 : 1

ratio of pair of supplementary aangle = 2 : 1

ASA

Step-by-step explanation:

The Proof proves that two of the angles and the included side are equal making it the ASA theorem