Nilai z pada gambar diatas adalah…..a. 120b. 140c. 160d. 170​

Jawaban:

• Nilai z

z – 40° + 60° = 180°

z + 20° = 180°

z = 180° – 20°

z = 160° (C)

• Nilai x

3x = 60

x = 60/3

x = 20°

• Nilai y

3x + y + 40° = 180°

3(20) + y + 40° = 180°

60° + y + 40° = 180°

y = 180° – 100°

y = 80°

atau

y + 40° = z – 40°

y + 40° = 160° – 40°

y° = 160° – 40° – 40°

y° = 80°

Jawaban:

C . 160

Penjelasan dengan langkah-langkah:

z – 40

=300 – 40

=160⁰