Question

Diket besar <P=(4x-13)° dan <Q=(3x+5)° jika <P dan <Q saling berpenyiku,besar <Q adlh

Answer 1

Jumlah dua sudut saling berpenyiku = 90°

∠P + ∠Q = 90°
(4x - 13) + (3x + 5)= 90
7x - 8 = 90
7x = 90 + 8
7x = 98
x = 98 ÷ 7
x = 14

∠P = 4x - 13
∠P = 4(14)-13
∠P = 56 - 13
∠P = 43°

∠Q = 3x + 5
∠Q = 3(14) + 5
∠Q = 42 + 5
∠Q = 47°

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