DEC:CEB=2:4
maka
DEC=2/2+4×90°
DEC=2/6×90°
DEC=1/3×90°
DEC=30°
Jawaban:
DEC = 30⁰
Penjelasan dengan langkah-langkah:
CEB + DEC = 90 (sudut penyiku)
4X + 2X = 90
6X = 90
X = 90/6
X = 15
DEC = 2X = 2 x 15 = 30⁰
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Penyelesaian:
DEC:CEB=2:4
maka
DEC=2/2+4×90°
DEC=2/6×90°
DEC=1/3×90°
DEC=30°
Jawaban:
DEC = 30⁰
Penjelasan dengan langkah-langkah:
CEB + DEC = 90 (sudut penyiku)
4X + 2X = 90
6X = 90
X = 90/6
X = 15
DEC = 2X = 2 x 15 = 30⁰