Question

determine os valores das incógnitas sabendo que​

Answer 1

Resposta:

a) a=80 graus b=80 graus

b)a= 150 graus b=30 geaus

c) a= 60 graus b= 120 graus

d) x=50 graus a=80 graus

e) a=130 graus ×=70 graus b=130 graus

f) 2x+50=×+80 ×=30 2×+50

2×30+50=110

entao a=b=110 graus

g) x+20+3×-40=180

4×-20=180

4×=180+20 4×=200 ×=200/4 ×=50

a=×+20 a=50+20=70graus

b=3×-40 3×50-40 150-40 b=110graus

h)a=110 graus b= 70 graus