4x + 5x = 180×5
9x = 900
x = 100
Besar sudut P = 4/5 × 100 = 80°
Penyikus sudut P = 90-80 = 10°
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4x + 5x = 180×5
9x = 900
x = 100
Besar sudut P = 4/5 × 100 = 80°
Penyikus sudut P = 90-80 = 10°