total sudut pelurus=180°
Besar sudut A= 180-130=50°
total sudut penyiku=90°
Besar penyiku A=90-50=40°
pelurus A = 130°
sudut A + pelurus A = 180°
sudut A + 130° = 180°
sudut A = 180° - 130° = 50°
penyiku A = 90° - 50° = 40°
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total sudut pelurus=180°
Besar sudut A= 180-130=50°
total sudut penyiku=90°
Besar penyiku A=90-50=40°
pelurus A = 130°
sudut A + pelurus A = 180°
sudut A + 130° = 180°
sudut A = 180° - 130° = 50°
penyiku A = 90° - 50° = 40°
semoga bermanfaat