kalau ini bagaimana ya

Mapel : Matematika
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K = 2(p + l)
100 = 2[(4x + 2) + (3x + 6)]
100/2 = 7x + 8
50 - 8 = 7x
42 = 7x
42/7 = x
6 = x

Maka, Luas Persegi
= panjang x lebar
= (4x + 2) x (3x + 6)
= [4(6) + 2] x [3(6) + 6]
= (24 + 2) x (18 + 6)
= 26 x 24
= 624 cm²