Respuesta :

choixongdong

Answer:

The supplementary angle of 121 is 59°

Step-by-step explanation:

Supplementary, sum = 180°

so 180 - 21 = 59°

The supplementary angle of 121 is 59°

gmany

Answer:

59°

Step-by-step explanation:

Two Angles are Supplementary when they add up to 180°.

x - the angle

We have the equation:

121° + x = 180°               subtract 121° from both sides

121° - 121° + x = 180° - 121°

x = 59°