Question

Aflatiperimetrul unui dreptunghi cu demensiunile de: a)6cm si 4cm b) 9,5cm si 6,8cm

Answer 1

salut!
Pdreptunghi=L•2+l•2
a) 6cm si 4cm
P=6•2+4•2=12+8=20cm
b) 9,5cm si 6,8cm
P=9,5•2+6,8•2=19+13,6=32,6cm

Answer 2

P=2L+2l

a)P=2×6+2×4 =12+8=20 cm

b)P=2×9,5+2×6,8=19+19,6=38,6 cm