Oblicz pole i obwód prostokąta jeśli przekątna ma 8cm , a krótszy bok 4 cm
p=8cm*4cm=32cm lub cm kwadratowe czyli cm2
obw=32+32=64cm
P = a * h / 2
a = 4 cm
h = 8 cm
P = 4 cm * 8 cm / 2 = 32 cm / 2 = 16 cm kwadratowych
Ob. = a + b + c
b = 8 cm
c = 8 cm
Ob. = 4 cm + 8 cm + 8 cm = 20 cm
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p=8cm*4cm=32cm lub cm kwadratowe czyli cm2
obw=32+32=64cm
P = a * h / 2
a = 4 cm
h = 8 cm
P = 4 cm * 8 cm / 2 = 32 cm / 2 = 16 cm kwadratowych
Ob. = a + b + c
a = 4 cm
b = 8 cm
c = 8 cm
Ob. = 4 cm + 8 cm + 8 cm = 20 cm