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(2,5*2,5)5=31,25 cm²
(2,5*205)4=25 cm²
(2,5*2,5)5=31,25 cm²
Papieru na oklejenie potrzeba 31,25+25+31,25=87,5 cm²
b)
(2,5*2,5)5=31,25 cm²
(2,5*2,5)4=25 cm²
(2,5*2,5)4=25 cm²
(2,5*2,5)5=31,25 cm²
Papieru na oklejenie potrzeba 31,25+25+25+31,25=112,5 cm²