Jawaban:
D. 18 orang.
Penjelasan dengan langkah-langkah:
∠Drama = 360° - (90° + 60° + 80° + 100°)
= 360° - 330°
= 30°
Jumlah seluruh peserta didik.
= 48 × 360°/80°
= 48 × 9/2
= 432 ÷ 2
= 216 peserta didik.
Jumlah peserta didik yg ikut drama.
= 30°/360° × 216
= 1/12 × 216
= 216 ÷ 12
= 18 orang. (D)
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Jawaban:
D. 18 orang.
Penjelasan dengan langkah-langkah:
∠Drama = 360° - (90° + 60° + 80° + 100°)
= 360° - 330°
= 30°
Jumlah seluruh peserta didik.
= 48 × 360°/80°
= 48 × 9/2
= 432 ÷ 2
= 216 peserta didik.
Jumlah peserta didik yg ikut drama.
= 30°/360° × 216
= 1/12 × 216
= 216 ÷ 12
= 18 orang. (D)