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Verified answer
Penyelesaian :Suplemen S. KLM = ( 6x + 12 )°
S. KLM = 180° - ( 6x + 12 )°
S. KLM = 180 - 6x° - 12°
Komplemen S. KLM = ( 3x - 18 )°
S. KLM = 90° - ( 3x - 18 )°
S. KLM = 90° - 3x - 18°
Bentuk kepersamaan linear 1 variabel
S. KLM = S. KLM
180° - 6x° - 12 = 90° - 3x° + 180°
-6x° + 3x° = 90° + 18° + 12° - 180°
-3x° = -60°
x = -60 / -3
x = 20
S. KLM
= 180° - ( 6x + 12 )°
= 180° - ( 6(20) + 12 )°
= 180° - ( 120 + 12 )°
= 180° - 132°
= 48°
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