Obwod kola ma 17 cm. Jaka jest srednica kola ?
l=π*d
d=l/π
d=17cm/3,14≈5,4cm
Pozdrawiam
Ob = 2πr
17cm = 2πr
17/2π cm = r
r = 17/2π cm
d = 2r
d = 2 * 17/2π
d = 17/π cm ----- odpowiedź
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l=π*d
d=l/π
d=17cm/3,14≈5,4cm
Pozdrawiam
Ob = 2πr
17cm = 2πr
17/2π cm = r
r = 17/2π cm
d = 2r
d = 2 * 17/2π
d = 17/π cm ----- odpowiedź