Jawaban:
nilai x=15°
<KLN=145°
<NLM=95°
Penjelasan dengan langkah-langkah:
<KLN+<NLM=180°
9x+10°+6x+5°=180°
9x+6x+10°+5°=180°
15x+15°=180°
15x=180°-15°
15x=165°
x=165°÷15
x=15°
<KLN=9x+10°
=9×15°+10°
=145°
<NLM=6x+5°
=6×15°+5°
=95°
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Jawaban:
nilai x=15°
<KLN=145°
<NLM=95°
Penjelasan dengan langkah-langkah:
<KLN+<NLM=180°
9x+10°+6x+5°=180°
9x+6x+10°+5°=180°
15x+15°=180°
15x=180°-15°
15x=165°
x=165°÷15
x=15°
<KLN=9x+10°
=9×15°+10°
=145°
<NLM=6x+5°
=6×15°+5°
=95°