5 cm =3,14×5=15,70
18 cm =3,14 ×18=56,52
13 cm =3,14×13=40,82
Respuesta:
a) Área= π × r²
= 3.14 × 5²
= 3.14 × 25
= 78.5
b) Área= π × r²
= 3.14 × 9²
= 3.14 × 81
= 254.34
CA
18÷2=9
c) Área= π × r²
= 3.14 × 13²
= 3.14 × 169
= 530.66
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5 cm =3,14×5=15,70
18 cm =3,14 ×18=56,52
13 cm =3,14×13=40,82
Respuesta:
a) Área= π × r²
= 3.14 × 5²
= 3.14 × 25
= 78.5
b) Área= π × r²
= 3.14 × 9²
= 3.14 × 81
= 254.34
CA
18÷2=9
c) Área= π × r²
= 3.14 × 13²
= 3.14 × 169
= 530.66