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b=4√2
c=5√2
Pc=2* (ab+bc+ca)
2*(3√2 * 4√2 + 5√2 * 4√2 + 3√2 * 5√2)=2 * 24 + 2 * 40 + 2 * 30 = 48 + 80 +60 = =188 cm²
b=4√2
c=5√2
Pole podstawy:
p=3√2 * 4√2= 12√4= 12 * 2= 24 cm²
Pole dwóch podstaw:
24 cm² * 2= 48cm²
Pole ściany bocznej₁:
P=4√2 * 5√2= 20√4= 20 * 2= 40cm²
Pole ściany bocznej₂:
P=3√2 * 5√2=15√4= 15*2=30cm²
Pole całkowite:
Pc= 48cm²+ 2 * 30cm² + 2 * 40cm²= 48cm² +60cm²+80cm²=188cm²