2 – Determine, em radiano, a medida dos arcos dada em grau.
a) 270°
b) 60°
c) 150°
Soluções para a tarefa
a) 180 ---
270 ---- x
180x = 270
x = 270/ 180 : 90
x = 3/2
b) 180 ---
60 ---- x
180x = 60
x = 60/ 180 : 60
x = /3
c) 180 ---
150 ---- x
180x = 150
x = 150/ 180 : 30
x = 5/6
d) 180 ---
240 --- x
180x = 240
x = 240/ 180 : 60
x = 4/3a) 180 ---
270 ---- x
180x = 270
x = 270/ 180 : 90
x = 3/2
b) 180 ---
60 ---- x
180x = 60
x = 60/ 180 : 60
x = /3
c) 180 ---
150 ---- x
180x = 150
x = 150/ 180 : 30
x = 5/6
d) 180 ---
240 --- x
180x = 240
x = 240/ 180 : 60
x = 4/3a) 180 ---
270 ---- x
180x = 270
x = 270/ 180 : 90
x = 3/2
b) 180 ---
60 ---- x
180x = 60
x = 60/ 180 : 60
x = /3
c) 180 ---
150 ---- x
180x = 150
x = 150/ 180 : 30
x = 5/6
d) 180 ---
240 --- x
180x = 240
x = 240/ 180 : 60
x = 4/3