Respuesta :

wegnerkolmp2741o

Answer:

B. 78o and 102o

Step-by-step explanation:

Supplementary angles add to 180 degrees

A. 100o and 90o

100+90 = 190   NO

B. 78o and 102o

78+102 = 180   YES

C. 54o and 146o

54+ 146 = 200 NO

D. 12o and 78o

12+ 78  90    NO  These are complementary