Question

In ABC, side BC has been produced to D. If Cone BAC = 45° and Cone ABC = 55°, then Cone ACD = ?​

Answer 1

Answer:

100°

Step-by-step explanation:

internal sum of angles 180

55+45+x=180°

x=80° ( angle ACB)

angleACB+angleACD=180° (linear pair)

89°+ACD=180°

angleACD=100°