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K = 56
K = 2×(p+l)
K = 2×(4+3)
56= 14 Perbandinɡan
maka 1 perbandinɡan = 56/14 = 4 cm
panjanɡ = 4(4) = 16
lebar = 3(4) = 12
Ditanya
L Perseɡi panjanɡ
Rumus
= p × l
= 16 × 12
= 192 cm²
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