Respuesta :
Answer:
1/2(a° + b°).
1/2(a° – c°).
1/2(b° + c°).
1/2(a° – b°).
-Answer-
D. 1/2(a° – b°).
Step-by-step explanation:
Answer:
1/2(a° + b°).
1/2(a° – c°).
1/2(b° + c°).
1/2(a° – b°).
-Answer-
D. 1/2(a° – b°).
Step-by-step explanation: