Question

)Find all angles of the given

Answer 1

Step-by-step explanation:

123° + c° = 180° (linear pair)

c°= 180°- 123°

c°= 57°

d+55° = c° (corresponding angles)

d+ 55° = 57°

d= 57° - 55°

d= 2°

b° + d° +55° = 180° (linear pair)

b° + 2 +55 = 180

b° = 180- 57

b° = 123°

a° + c °+d° = 180°(sum of angles of a triangle)

a° + 57 + 2 = 180

a° = 180- 59

a° = 121°

Answer 2

Step-by-step explanation:

123° + C° = 180°

C° = 180° - 123°

C° = 57° ( exterior angle of the triangle)

c° = b° (corresponding angles)

57° + 55° + d° = 180°

112° + d° = 180°

d° = 180° - 112°

d° = 68° ( linear pair )

a° + 57° + 68° = 180

a° + 125° = 180

a° = 180 - 125

a° = 55° ( The sum three interior angles is 180 degree)

a° = 55

b° = 57

c° = 57

d° = 68

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