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Verified answer
➡️Mata Pelajaran: Matematika➡️Bab: Sudut
➡️Kata Kunci: (-)
Pembahasan
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Sudut A
= 3/(3 + 7) × 180
= 3/10 × 180
= 3 × 18
= 54°
Penyiku sudut A
= 90 - 54
= 36°
Verified answer
A + B = 180Misalkan kelipatan
perbandingannya adalah n
A+B = 180
3n + 7n = 180
10n = 180
n = 180/10
n = 18
A = 3n = 3 (18) = 54
Penyiku A adalah =90 - 54 = 36