Sisi suatu segitiga adalah (x+1)cm, (2x-2)cm,(3x+6)cm, Jika kelilingnya 35cm, tentukan sisi masing masing! Mohon dibantu yaa
5dregensleyer
Kliling = x + 1+ 2x - 2 + 3x + 6 35 = 6x + 5 35 -5 = 6x 30 = 6x 30/6 = x 5 = x panjang sisi masing-masing sisi I = X + 1 = 5 + 1 = 6 cm sisi II = 2x - 2 =2(5) -2 = 8 cm sisi III = 3x + 6 = 3(5) + 6 = 21 cm
35 = 6x + 5
35 -5 = 6x
30 = 6x
30/6 = x
5 = x
panjang sisi masing-masing
sisi I = X + 1
= 5 + 1
= 6 cm
sisi II = 2x - 2
=2(5) -2
= 8 cm
sisi III = 3x + 6
= 3(5) + 6
= 21 cm