Jawaban:
m(BEC) = 45°
m(AED) = 45°
m (DEC) = 135°
Penjelasan dengan langkah-langkah:
m(AEB) = m(DEC)→hukum sudut bertolak belakang
M(AEB) = M(DEC)
135° = 135°
m(AEB) + m(BEC) = 180° →hukum sudut berpelurus
135° + m(BEC) = 180°
M(BEC) = 180° - 135°
= 45°
M (BEC) = M(DEC)
45° = 45°
Materi : Hubungan dua sudut
Materi : Hubungan dua sudutKelas : 7 SMP
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Jawaban:
m(BEC) = 45°
m(AED) = 45°
m (DEC) = 135°
Penjelasan dengan langkah-langkah:
m(AEB) = m(DEC)→hukum sudut bertolak belakang
M(AEB) = M(DEC)
135° = 135°
m(AEB) + m(BEC) = 180° →hukum sudut berpelurus
135° + m(BEC) = 180°
M(BEC) = 180° - 135°
= 45°
M (BEC) = M(DEC)
45° = 45°
Materi : Hubungan dua sudut
Materi : Hubungan dua sudutKelas : 7 SMP