Question

Calculer l'aire d'une crêpe cuite sur une crêpière de 40 cm de diamètre

Answer 1

1257cm²

Explanation:

L'aire d'un cercle =
`\pi`r²

=
`\pi`
`(d)/(2)`²

=
`\pi`
`(40cm)/(2)`²

=
`\pi`(20cm)²

=
`\pi`400cm²

= 1256.63706144cm²

Answer 2

Answer is 455444. It’s wrong but Type in English, maybe you’ll find help.