Jawaban:
∆ = 180°
2a + 3a + 35 = 180
5a = 145
a = 145 : 5
a = 29
Pembuktian
2(29) + 3(29) + 35 = 180
58 + 87 + 35 = 180
180 = 180 (Benar)
Nilai a adalah 29
Penjelasan dengan langkah-langkah:
SUDUT dalam SEGITIGA
< A + < B + < C = 180°
2a° + 35° + 3a° = 180°
(2+3)a° = 180° – 35°
5a° = 145°
a = 145
5
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Jawaban:
∆ = 180°
2a + 3a + 35 = 180
5a = 145
a = 145 : 5
a = 29
Pembuktian
2(29) + 3(29) + 35 = 180
58 + 87 + 35 = 180
180 = 180 (Benar)
Nilai a adalah 29
Penjelasan dengan langkah-langkah:
SUDUT dalam SEGITIGA
< A + < B + < C = 180°
2a° + 35° + 3a° = 180°
(2+3)a° = 180° – 35°
5a° = 145°
a = 145
5
a = 29° ✔