Jawaban:
72
Penjelasan dengan langkah-langkah:
berpelurus =180°
sehingga
<B = 2/5 x 180° = 72°
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Jawaban:
72
Penjelasan dengan langkah-langkah:
berpelurus =180°
sehingga
<B = 2/5 x 180° = 72°