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panjang sebenarnya = 3, 5 x 2000 = 7000 = 70 m
L = 70 x 70 = 4900 m²
sisi sebenarnya:
= 3,5 x 2.000
= 7.000 cm
= 70 m
Luas:
= s²
= 70²
=49.000 m²