Jawaban:
A. 15°
Penjelasan dengan langkah-langkah:
mencari nilai x:
5x + 7x = 180°
12x = 180°
x = 15°
mencari nilai sudut A:
A = 5x
A = 75°
penyiku A:
= 90°- 75°
= 15°
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Jawaban:
A. 15°
Penjelasan dengan langkah-langkah:
mencari nilai x:
5x + 7x = 180°
12x = 180°
x = 15°
mencari nilai sudut A:
A = 5x
A = 75°
penyiku A:
= 90°- 75°
= 15°