Question

72 derajat = ... radian.
2/3 rad = ... putaran.
2/5 putaran = ... radian.
Tolong yaa :'v

Answer 1

Rumus
R/D = phi/180
R = Radian
D = Derajat.

1. 72 derajat
=> R/72 = phi/180
R = 72×phi/180 = 2/5 phi rad

2. 2/3 phi rad
2/3 / D = phi/180
2/3 phi × 180 = D phi
D = 130 derajat

D/360 = putaran
130/360 = putaran
1/3 = putatan

2/3 phi rad = 1/3 putaran

3. 2/5 put
2/5 put × 360
144 derajat

R/144 = phi/180
R = 144×phi/180
R = 4/5 phi

2/5 putaran = 4/5 phi rad


Jika ada yang bingung atau salah, maaf.
Kalo ada yang ditanya, komen ok ?