Question

Pkee cara dong no 22 :)

Answer 1

Cara

2y + 3y + 4y = 180°

9y = 180°

y = 180 : 9 = 20

y = 20

Ditanya

Besar ABD

2y = 2 × 20 = 40°

ABD = 40°

Jawaban

D. 40°

Sekian terima kasih

Answer 2

mencari nilai y terlebih dahulu :

2y+3y+4y = 180°

9y = 180°

y = 180°÷9

y =20°

sudut ABD

<ABD = 2y ×20°

=40°

jawabannya D. 40°

- semoga membantu :)