Question

Pada jajargenjang KLMN diketahui besar sudut K=(x+5) dan sudut N=(3X-25) besar sudut L adalah

Answer 1

K + N = 180°
x+5+3x-25 = 180°
4x-20 = 180°
4x = 180°+20
4x = 200°
x = 50°

L = N
L = 3x-25
L = 3(50°)-25
L = 150°-25
L = 125°

Answer 2

K + N = 180³
x + 5 + 3x -25 = 180³
4x - 20³ = 180³
        4x = 200³
          x = 50³
L = N
  = 3x - 25
  = 3(50) - 25³
  = 150³ - 25³
  = 125³