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b=3√2cm
a=?
c²=b²+a²
7²=(3√2)²+a²
49-36=a²
a²=√13cm
P=a*b
P=√13*7
P=7√13cm²
(9*2) + x² = 49
x² = 49-18
x² = 31
x = √31
2* √31 + 2*(3√2)
obw = (2√31 + 6√2) cm
b= 3√2
a=?
7²=(3√2)²+a²
49-36=a²
a²=√13cm
P=a*b
P=√13*7
P=7√13cm²
Odp: Pole wynosi 7√13cm² .