Respuesta :

Halfblood94
a= 35° because 180°-80°-65°= 35°

b=50° because 180°-95°-35°= 50°

c=85° because 180°-95°= 85°

d=30° because 180°-65°-85°= 30°

For these you just have to remember that the sum of the angles of a triangle is 180°, and the same for a straight line.

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