Question

solve it urgent please​

Answer 1

Step-by-step explanation:

By linear pair,

Angle ECD + Angle ACB = 180°

Let Angle ACB be x°,

115° + x°= 180°

x° = 180° - 115°

x° = 65°

Angle ACB = 65°

By Vertically opposite Angles,

Angle EAF = Angle BAC

Angle BAC = 60°

By angle sum property,

Angle A + Angle B + Angle C = 180°

Let Angle B be x°,

60° + 65° + x° = 180°

125° + x° = 180°

x° = 180° - 125°

x° = 55°

Angle B = 55°