Question

Tentukan nilai x+y+z !

Answer 1

108 + 12x = 180 ( pelurus)
12x = 180 - 108
x = 72/12
x = 6°

56 + 5x + 2y = 180 ( pelurus)
5x + 2y = 180-56 = 124

5(6) + 2y = 124
30 + 2y = 124
2y = 94
y = 47°

12x + 56 + 4z = 180 (jmlh sudut segitiga)
72 + 56 + 4z = 180
128 + 4z = 180
4z = 52
z = 13

x + y + z
= 6 +47+13
= 66

Answer 2

12x+108=180
12x=180-108
12x=72
x= 72:2=6

56+5x+2y=180
5.6+2y=180-56
30+2y=124
2y=124-30
2y= 94
y=94:2=47

12x+56+4z=180
12.6+4z=180-56
72+4z=124
4z=124-72
4z=52
z=52:4=13

x+y+z= 6+47+13 = 66