80 orang
Penjelasan dengan langkah-langkah:
S2 = 360° - (120+30+80+90)°
= 360° - 320°
= 40°
.
90°/40° = 180/x
9/4 = 180/x
9x = 180(4)
9x = 720
x = 720/9
x = 80
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80 orang
Penjelasan dengan langkah-langkah:
S2 = 360° - (120+30+80+90)°
= 360° - 320°
= 40°
.
90°/40° = 180/x
9/4 = 180/x
9x = 180(4)
9x = 720
x = 720/9
x = 80