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kreska ułamkowa →→→→→→ jak cos to to kreska ułamkowa
2
a=24cm
b=15cm²
c=6cm
P=24+15cm².6cm
→→→→→→→→→ = 234cm²
2
18/2=9
9² +h² = 15²
81+ h² =225
h²=225-81=144
h=12
P=(6+24)*12 *½= 180cm²