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b=?
c=7
c²-a²=b²
49-18=31
b²=31
b=√31
I to jest dobry wynik . Bo tez to ostatnio w szkole miałam ;)
a=3√2 cm
c=7cm
b=?
(3√2)²+b²=7²
b²=49-9*2
b²=49-18
b²=31
b=√31
P=a*b
P=3√2 *√31
P=3√62 cm²