< KLN + < KLM = 90⁰ (Sudut berpenyiku)
2x + 6 + x + 9 = 90
3x + 15 = 90
3x = 90 - 15
3x = 75
x = 75 : 3
x = 25⁰
< KLN = 2x + 6
< KLN = (2 x 25) + 6
< KLN = 50 + 6
< KLN = 56⁰ (A)
Jawaban : A. 56⁰
Rumus : Sudut penyiku = Sudut A + Sudut B = 90⁰
#Matematika
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Sudut dan Garis
< KLN + < KLM = 90⁰ (Sudut berpenyiku)
2x + 6 + x + 9 = 90
3x + 15 = 90
3x = 90 - 15
3x = 75
x = 75 : 3
x = 25⁰
< KLN = 2x + 6
< KLN = (2 x 25) + 6
< KLN = 50 + 6
< KLN = 56⁰ (A)
Jawaban : A. 56⁰
Rumus : Sudut penyiku = Sudut A + Sudut B = 90⁰
#Matematika