la fórmula es :
[tex]P = 2π X r[/tex]
hallar la radio :
[tex]D = 2r \\ 15 = 2r[/tex]
[tex] \frac{15}{2} = r[/tex]
[tex]7.5 = r[/tex]
Reemplaza los datos y resolvemos con siderando pi = 3
[tex]P = 2π X r \\ P=2(3) x 7.5 \\ P = 6 x 7.5 \\ P = 45[/tex]
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Perímetro = 45 cm
opción c
la fórmula es :
[tex]P = 2π X r[/tex]
hallar la radio :
[tex]D = 2r \\ 15 = 2r[/tex]
[tex] \frac{15}{2} = r[/tex]
[tex]7.5 = r[/tex]
Reemplaza los datos y resolvemos con siderando pi = 3
[tex]P = 2π X r \\ P=2(3) x 7.5 \\ P = 6 x 7.5 \\ P = 45[/tex]
no uses el término *g-e-y*