Question

Nilai x + y + z pada gambar berikut adalah ...​

Answer 1

180 = 60 + 6x

6x = 180 - 60

6x = 120

x = 120/6

x = 20°

2y + 70 = 6x

2y + 70 = 6(20)

2y = 120 - 70

2y = 50

y = 50/2

y = 25°

60 + 2y + 3z = 180

2(25) + 3z = 180 - 60

50 + 3z = 120

3z = 70

z = 70/3 = 23,33°

x + y + z = 20 + 25 + 23,33 = 68,33°

Jadi, x + y + z = 68,33° ≈ 68°

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Mapel : Matematika

Kelas : VII

Materi : Garis dan Sudut

Kata Kunci : (-)

Kode : 7.2.3