Question

Calcular “X”
Ayuda por favor:(

Answer 1

90°+40°-180°=130°

Beta es igual a 130°

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90/2=45

m=45

45+45=90°

130+90+x=180

220-180=x

x=40

2n+n+n=40

4n=40

n=10

10+45+x=180

x=125

RPTA :125