Odpowiedź:
1. Wzór: a*h/2
a=3cm
h=5cm
P=3cm*5cm:2=7,5cm2
2. Wzór: e*f/2
e=8m
f=3,5m
P=8m*5m/2=20m2
3. Wzór: (a+b)*h/2
a=6m
b=9m
h=4m
P=(6m+9m)*4m/2=30m2
Dasz naj?
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Odpowiedź:
1. Wzór: a*h/2
a=3cm
h=5cm
P=3cm*5cm:2=7,5cm2
2. Wzór: e*f/2
e=8m
f=3,5m
P=8m*5m/2=20m2
3. Wzór: (a+b)*h/2
a=6m
b=9m
h=4m
P=(6m+9m)*4m/2=30m2
Dasz naj?