B. 1 : 3
Penjelasan dengan langkah-langkah:
IPA = 360° - 90° - 110° - 60° - 80°
= 20°
maka
IPA : B.Indo = 20° : 60°
= (20°:20°) : (60°:20°)
= 1 : 3
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B. 1 : 3
Penjelasan dengan langkah-langkah:
IPA = 360° - 90° - 110° - 60° - 80°
= 20°
maka
IPA : B.Indo = 20° : 60°
= (20°:20°) : (60°:20°)
= 1 : 3