K = x-3 + x+4 + 2x-3
K = 4x - 2
(2x-3)² = (x+4)² + (x-3)² <= pitagoras
4x²+9-12x = x²+8x+16 + x²-6x+9
4x²-12x = 2x²+2x+16
2x²-6x = x²+x+8
x²-7x-8 = 0
(x-8)(x+1) = 0
x = 8 atau -1 <= ambil yang x = 8 , karena x = -1 akan menyebabkan 2 sisi bernilai negatif (gak nyambung kalau sisinya negatif)
x = 8
K = 4.8 - 2
K = 30 cm
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K = x-3 + x+4 + 2x-3
K = 4x - 2
(2x-3)² = (x+4)² + (x-3)² <= pitagoras
4x²+9-12x = x²+8x+16 + x²-6x+9
4x²-12x = 2x²+2x+16
2x²-6x = x²+x+8
x²-7x-8 = 0
(x-8)(x+1) = 0
x = 8 atau -1 <= ambil yang x = 8 , karena x = -1 akan menyebabkan 2 sisi bernilai negatif (gak nyambung kalau sisinya negatif)
x = 8
K = 4.8 - 2
K = 30 cm