Question

Kakak please bantuin aku besok di kumpulin

Answer 1

Verified answer

Dua sudut yang saling bertolak belakang sama besar
2x+40° = 130°
2x = 90°
x = 45°

y+10° = 40°
y = 30°

3z+20° = 80°
3z = 60°
z = 20°

x+y-z = 45°+30°-20° = 55°

Answer 2

a. 2x + 40 = 130
    2x = 130 – 40
    2x = 90
     X   = 45

b. 3z + 20 = 80
     3z = 80 – 20
     3z = 60
      Z   =20

 c. y + 10 = 40

     y = 40 – 10

      y = 30

Maka  x + y -z

        = 45 + 30 – 20

        = 55

Jawaban C

 

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