72°
Penjelasan dengan langkah-langkah:
(9x + 18)° + (7x + 2)° = 180° (berpelurus)
9x + 7x + 18 + 2 = 180°
16x + 20 = 180°
16x = 180 - 20
16x = 160°
x =
x = 10°
<KON = 7x + 2
<KON = 7(10) + 2
<KON = 70 + 2
<KON =
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72°
Penjelasan dengan langkah-langkah:
(9x + 18)° + (7x + 2)° = 180° (berpelurus)
9x + 7x + 18 + 2 = 180°
16x + 20 = 180°
16x = 180 - 20
16x = 160°
x =
x = 10°
<KON = 7x + 2
<KON = 7(10) + 2
<KON = 70 + 2
<KON =