CJ
Cahaya J
12 April 2023 03:14
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CJ
Cahaya J
12 April 2023 03:14
Pertanyaan
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FK
Fidan K
12 April 2023 06:39
Jawaban terverifikasi
<p>∠DOE = 2x + 8 </p><p>∠DOC = x + 4</p><p>∠COB = 3x + 6</p><p>∠COE = ? </p><p> </p><p>∠DOB = siku siku = 90°</p><p>∠DOB = ∠DOC + ∠COB</p><p>90° = (x + 4) + (3x + 6)</p><p>90° = 4x + 10°</p><p>90° - 10° = 4x</p><p>80° = 4x --> x = 80°/4 </p><p> x = 20°</p><p> </p><p>∠COE = ∠DOE + ∠DOC</p><p>∠COE = (2x + 8) + (x + 4)</p><p>∠COE = 3x + 12</p><p>∠COE = 3(20) + 12 </p><p>∠COE = 60 + 12 = 72° (B)</p><p> </p>
∠DOE = 2x + 8
∠DOC = x + 4
∠COB = 3x + 6
∠COE = ?
∠DOB = siku siku = 90°
∠DOB = ∠DOC + ∠COB
90° = (x + 4) + (3x + 6)
90° = 4x + 10°
90° - 10° = 4x
80° = 4x --> x = 80°/4
x = 20°
∠COE = ∠DOE + ∠DOC
∠COE = (2x + 8) + (x + 4)
∠COE = 3x + 12
∠COE = 3(20) + 12
∠COE = 60 + 12 = 72° (B)
· 5.0 (2)
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