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b = 10 cm
b = 10 czyli 10 = h √2
h √2 = 10 |:√2
h = 10√ 2/2
h = 5 √2
P = a* h
P = 6*5 √2
P = 30 √2 cm²
10 √18
10 √18 = 10 √9* √2 = 10*3* √2 = 30 √2
a=6 /pierwiastek z 2
p=a*h
p=60podzielic na pierwiastek z 2