Mama cumpara 3 kg de cartofi si 5 kg de rosii platind 39 lei iar sora ei cumpara 6 kg de cartofi si 2 kg de rosii platind 30 lei . cat costa 1 kg de cartofi ? dar 1 kg de rosii ?

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.