Nilai Y adalaha.24°b.25°c.26°d.34°tolong pakai cara​

Jawaban:

C. 26°

Langkah – langkah:

E = 102°

AF = 180°

3y + 102 = 180

3y = 180 – 102

3y = 78

y = ⁷⁸/₃

y = 26

Pembuktian

3y = 3(26) = 78°

AF = AE + EF

AF = 78° + 102°

AF = 180° (Benar) karena AF garis lurus