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d1=6
d2=?
(Pitagoras) 4²-3²=x²
16-9=x²
x²=7//√
x=√7
d2=2√7
Każdy bok ma 5 cm.
P= 1/2 d1 x d2
6 x 6 podzielone na 1/2
36:2= 18
p=18cm kwadratowych
a=5cm
d1=6cm
P=a*h
d1/2=3cm
d=3cm
d^2+h^2=a^2
9+h^2=25
h^2=25-9
h^2=16
h=4cm
d2=4*2=8cm
P=8*6*(1/2)
P=4*6
P=24cm^2