Davis1127
Davis1127
25-09-2017
Mathematics
contestada
How to solve the problem
Respuesta :
Allysia123
Allysia123
28-09-2017
as tgose lines are parallel then,
a = 140° ( by alternate interior angles)
then,
tha angle just below "a" on the other paralle line would also be 140° by corresponding angles,
using exterior angle property of triangle
66° + b = 140°
b = 140° -66
= 74°
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