D. 25°
Penjelasan dengan langkah-langkah:
2n + n + 15 = 90° (berpenyiku)
3n + 15 = 90°
3n = 90 - 15
3n = 75°
n = 75 ÷ 3
n =
2n + n + 15° = 90°
3n + 15° = 90°
3n = 90° - 15°
75°/3 = n
n = 25°
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D. 25°
Penjelasan dengan langkah-langkah:
2n + n + 15 = 90° (berpenyiku)
3n + 15 = 90°
3n = 90 - 15
3n = 75°
n = 75 ÷ 3
n =
Penjelasan dengan langkah-langkah:
2n + n + 15° = 90°
3n + 15° = 90°
3n = 90° - 15°
3n = 75°
75°/3 = n
n = 25°
Sekian dan terimakasih!