Final answer:
To prove △ABC ≅ △MNO using the SAS postulate, we need to show two pairs of corresponding sides and the included angle are congruent. Since we are given that C ≅ O, we have one pair of corresponding sides. Additional information such as BC ≅ NO or AB ≅ MN or AC ≅ MO is required.
Step-by-step explanation:
To prove △ABC ≅ △MNO using the SAS postulate, we need to show two pairs of corresponding sides and the included angle are congruent. Since we are given that C ≅ O, we have one pair of corresponding sides. To prove the congruence, we need at least one more pair of corresponding sides. Therefore, we need to provide additional information such as BC ≅ NO or AB ≅ MN or AC ≅ MO. With this information, we can apply the SAS postulate to conclude that △ABC ≅ △MNO.