tolong dibanto tugas sekolah

1 phi rad=180 derajat

A.phi/12 rad
180/12=15 derajat

B.5 phi rad/7
5(180)/7
900/7
=128,57 derajat

C.3 phi rad/5
3(180)/5
540/5
=108 derajat

Bab Radian
Matematika SMA Kelas X

a] (π/12) rad
= (π/12) . (180°/π)
= 15°

b] (5π/7) rad
= (5π/7) . (180°/π)
= 128,57°

c] (3π/5) rad
= (3π/5) . (180°/π)
= 108°