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L(1) : 1,5 cm
P(1) : 3 cm
Dit : Js :?
Js : Jp : Sk
L(2) : 300 × 1,5 : 1
: 450 cm
P(2): 300 × 3 : 1
: 900 cm
Js : P(2) × L(2)
: 900 × 450
: 405.000 cm²
: 40,5 m²