Question

Soal mtk kelas 7. Tentang Sudut dan garis" sejajar. Tolong di jawab ya, plis 30 menit lagi berangkat!!...

Answer 1

6) 2x + 6x+20 = 180
8x = 160
X = 160/8 = 20
Sudut CBD = 6x+20
= 6 (20) + 20
= 140
7) 3x+30+2x = 180
5x = 150
X = 30
Sudut ACB = 180-130
= 50

Answer 2

6) a. 2x + 6x+20 =180°
8x +20. =180°
8x. =180°-20
8x. =160°
x. = 160° : 8
x. = 20

b. <CBD = 6x+20
= 6(20)+20
= 120+20
= 149