Question

aflati perimetrul paralelogramului ABCD in fiecare dintre cazurile:
a)AB=5Cm si BC=4 cm
B) AB=4.3 cm si AD=2.7 cm
c)BC=0.25 m si CD=300 mm
f)Ad=8 cm , DB _l_ AB si m( D) AB=BD=3.5 cm si m(
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Answer 1

a) 5cm+4cm=9cm
b)4.3+2.7=7cm

Answer 2

a)AB=5Cm si BC=4 cm
P=2x(5cm + 4 cm) = 18 cm
B) AB=4.3 cm si AD=2.7 cm 
P = 2 x (4,3 cm + 2,7 cm) = 2 x 7 cm = 14 cm
c)BC=0.25 m si CD=300 mm
BC=250 mm
P = 2 x ( 250 mm + 300 mm) = 1100 mm
f)Ad=8 cm , DB _l_ AB si m( D) AB=BD=3.5 cm si m
p- 2 X (8 CM + 3,5 CM) = 2 X 11,5 CM = 23 CM