mohon pakai cara!!!!!!!!!!

sudut pusat voli = 360 - 135-45-108 = 72
siswa gemar voli = 72/360 × total siswa
8 = 72/360 × total siswa
8 = 1/5 × total siswa
total siswa = 8×5 = 40

360 - ( 45 + 108 + 135 )
360 - 288
=72
Jumlah seluruh siswa
=360/72×8
=40 anak