a=3 cm
b=5 cm
c=8 cm
Pc=2ab+2bc+2ac
Pc=2·3·5+2·5·8+2·3·8
Pc=30+80+48
Pc=158 cm²
Odp. B
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a=3 cm
b=5 cm
c=8 cm
Pc=2ab+2bc+2ac
Pc=2·3·5+2·5·8+2·3·8
Pc=30+80+48
Pc=158 cm²
Odp. B