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P=6*8/2
P=24
P=a*h
24=5*h/:5
h=4,8
P=e*f:2
P=a*h
P=e*f:2
e=6cm
f=8cm
P=6cm*8cm:2
P=48cm²:2
P=24cm²
P=a*h
P=24cm²
a=5cm
24cm²=5cm*h
h=24cm²:5cm
h=4,8cm
odp.wysokość wynosi 4,8cm
d-przekątna
a-podstawa
h-wysokosć
d¹-6
d₂-8
a-5
P=6*8*½=24cm²
24cm²=5*h
h=24/5
h=4,8