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TTr=25cm
r=8cm
l^=60^+8^
l^=3600+64
l^=3664
l=60,5cm
Pc=TTr^+TTrl=3,14x64cm+3,14x8cmx60,5cm=200,96cm+1519,76cm=1720,72cm(kwadratowych)
2TTr=50/2
TTr=25
r=25/TT----> 8
60^2 +8^2=l^2
3600+64=l^2
l=60,5
Pb=TTrl
Pb=8*60,5*3,14=1520 cm^2