Pertama, cari nilai X nya terlebih dahulu
3x + 5x + 20 = 180°
8x + 20 = 180°
8x = 180 - 20
8x = 160
x = 160/8
x = 20
∠SRP = 3x
∠SRP = 3 . 20
∠SRP = 60°
sudut pelurus = 180°
maka besar sudut srp adalah 60°
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Pertama, cari nilai X nya terlebih dahulu
3x + 5x + 20 = 180°
8x + 20 = 180°
8x = 180 - 20
8x = 160
x = 160/8
x = 20
∠SRP = 3x
∠SRP = 3 . 20
∠SRP = 60°
sudut pelurus = 180°
maka besar sudut srp adalah 60°