Penjelasan dengan langkah-langkah:
<A + <B + <C = 180°(jumlah sudut segitiga)
4x + 6x + 30 = 180
10x = 180 - 30
10x = 150
x = 150/10
x = 15°
<C = 6x°
<C = 6.15°
<C = 90°
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Penjelasan dengan langkah-langkah:
<A + <B + <C = 180°(jumlah sudut segitiga)
4x + 6x + 30 = 180
10x = 180 - 30
10x = 150
x = 150/10
x = 15°
<C = 6x°
<C = 6.15°
<C = 90°