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Verified answer
Matpel : MatematikaKelas : 7 SMP
Bab : Garis dan Sudut
Jawaban :
Sudut penyiku = 90°
Setengah dari sudut penyiku, berarti 90÷2 = 45°
Sudut pelurus = 180°
180 - 45 = 135° ( D )