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z kwadrat + 25 = 225
z kwadrat = 200
z=10pierwiastków z dwóch
y do kwadratu = 64-25
y kwadrat =39
y = pierwiastek z 39
a x niewiem :(
a²+5²=15²
a²+25=225
a²=225-25
a²=200
a=√200
a=10√2
a≈14,14
a=x+z
x²+5²=13²
x²+25=169
x²=169-25
x²=144
x=√144
x=12
z=a-x
z=14,14-12
z=2,14
b)
2²+h²=5²
4+h²=25
h²=25-4
h²=21
h=√21
h≈4,58
h²+6²=y²
(√21)²+36=y²
21+36=y²
y²=57
y=√57
y≈7,55
c)
x²+5²=7²
x²=49-25
x²=24
x=√24
x=2√6