Question

Tolong No. 12 Pake caranya...

Answer 1

2x - 6 + x + 8 + 3x - 7 = 49
6x = 49 + 7 - 8 + 6
6x = 54
x = 54/6 = 9

Mencari sisi terpendek :

2x - 6
2 x 9 - 6
= 12 cm

x + 8
9 + 8
= 17 cm

3x - 7
= 3 x 9 - 7
= 20 cm

Sisi terpendek = 12 cm (a)