Respuestas

2012-07-11T00:59:49+02:00

Sea:"X" el angulo

dato:

SS(X)+CC(X)=4C(X)

S(180-X)+C(90-X)=4(90-X)

[180-(180-X)]+[90-(90+X)]=4x90-4X

X+X=360-4X

2X=360-4X

6X=360

X=60