Oblicz pole i obwód koła , którego promień jest równy : a) 1cm b)3/4m c)2,2dm d)5 1/3cm       Prosze !!!! HElp!!!!

a) r=1 b) r=¾ c)r=2,2dm=22cm d)r=5⅓cm a)P=πr² P=π*1*1=π L=2*π*1=2π b)P=π*¾*¾=⁹/₁₆π L=2*π*¾=⁶/₄π=1½π c)P=π*22*22=484π l=2*π*22=44π d) P=π*¹⁶/₃*¹⁶/₃=²⁵⁶/₉π L=2*π*₁₆/³=³²/₃π= 10⅔π   Daj naj :D

[latex]P - pi r^{2}\ L=2pi r [/latex] [latex]a) L=2pi * 1 \ L=2pi cm \ P=pi (1*1) \ P=1pi cm^{2} \ b)L=2pi * 3/4\ L=1,5pi cm \ P=pi * (3/4 * 3/4) \ P=9/16pi cm^{2} \ c) L=2pi * 2,2\ L=4,4pi cm\ P=pi * (2,2 * 2,2 ) \ P=4,84pi cm^{2} \ d)L= 2pi * 5 1/3 \ L= 10 2/3 pi cm \ P=pi * (5 1/3 * 5 1/3) \ P= 24 4/9 pi b)L=2pi * 3/4\ L=1,5pi cm P=pi * (3/4 * 3/4) P=9/16pi cm^{2} \ [/latex]