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pembahasan :
1 putaran penuh = 360 derajat
1 putaran penuh = 2π.rad
2π.rad = 360 derajat
1 derajat = 1/360 putaran
1 radian = busur r / keliling lingkaran x 360 derajat
= r / 2π.r x 360 derajat
= 1/2π x 360 derajat
= 180/π derajat
1 derajat = π/180 radian
75 derajat = berapa radian ?
75 derajat = 75 x π/180 radian
= 5/12 π.rad
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kelas : 10
mapel ; matematika
kategori ; trigonometri dasar
kata kunci : radian
kode : 10.2.6 [matematika SMA kelas 10 bab 6 trigonometri dasar]