Question

kak tolong jawab, pke cara sekalian yya, jangan ngasal​

Answer 1

Jawaban:

1. a) x = 26°

y = 180 - (63 + 26)

y = 180 - 89

y = 91°

b) 2x + 40 = x + 80

x = 40°

y + 2(40) + 40 = 180

y + 80 + 40 = 180

y + 120 = 180

y = 60°

2. a) 3x - 45 = x + 23

2x = 68

x = 34°

b) BCF + 34 + 23 = 180

BCF + 57 = 180

<BCF = 123°