No 18 tolong pake jalannya!

1) 360 - (63+55+87+81) = 74 derajat
2) 74/360 * 72000 = 14.800 orang
Jadi jawabannya adalah A. 14.800 orang

[tex] {360}^{0} = a + b + c + d + e \\ {360}^{0} = {63}^{0} + {87}^{0} + {81}^{0} + d + {55}^{0} \\ {360}^{0} = {286}^{0} + d \\ d = {360}^{0} - {286}^{0} \\ d = {84}^{0} \\ penduduk \: desa \: d \: = \frac{84}{360} \times jml\: penduduk \\ = \frac{84}{360} \times 72000 \\ = 14800 \: orang[/tex]