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Mapel : Matematika
Kategori : Sudut & Bangun Datar
Kelas : Sekolah Dasar
Pembahasan:
∠DAE = 46°
∠ADE = [180 - (90 + 46)]° = 44°
a. ∠BAD = ∠DAE × 2 = 46 × 2 = 92°
b. ∠ABC = ∠ADE × 2 = 44 × 2 = 88°