Question

expresse 60 grau em radiano 10 pi sobre 9 em graus 210 grau em radiano

Answer 1

180° --- πrad
60° --- x
x = 60πrad/180
x=πrad/3

10πrad/9 ---x
πrad---180
xπrad=1800πrad/9
x=1800/9
x=200°

210°---x
180°---πrad
210πrad/180=x
x=7πrad/6