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a√2 = 20
a = 10√2
r = 5√2
V = r²h
V = 5√2²·10√2 = 500√2
Pc = 2r (r+h) = 25√2 (5√2 + 10√2) = 350
2.
a√2 = 10
a = 5√2
r = 2,5√2
V = r²h = 2,5√2² · 5√2 = 62,5√2
Pc = 2r(r+h) = 22,5√2 (2,5√2 + 5√2) = 75
Mam nadzieję, że jest dobrze :D