Vamos lá
A = B e B = D
BAD = BCD = 100°
ABC = ADC = 180 - 100 = 80°
a = 100/2 = 50°
b = 100/2 = 50°
c = 80/2 = 40°
d = 80/2 = 40°
e = 100/2 = 50°
f = 100/2 = 50°
g = 80/2 = 40°
h = 80/2 = 40°
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Vamos lá
A = B e B = D
BAD = BCD = 100°
ABC = ADC = 180 - 100 = 80°
a = 100/2 = 50°
b = 100/2 = 50°
c = 80/2 = 40°
d = 80/2 = 40°
e = 100/2 = 50°
f = 100/2 = 50°
g = 80/2 = 40°
h = 80/2 = 40°