Respostas

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2014-05-25T17:53:13-03:00
A) 
180· = π radianos
45· =   x
180x=45π 
x=  45π/180
x=π/4 radianos
b)
180· = π radianos
120· = x
180x=120π
x=120π/180
x= 2π/3
c)
180· = π radianos
210· = x
180x=210π
x=210π/180
x= 7π/6
d)
180· = π radianos
15· = x
180x=15π
x=15π/180
x= π/12


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