Question

Ayuda con mi deber porfavor

Answer 1

1) 2 × π × r                                              2) 2 × π × r
    2 × 3.14 × 5                                             2 × 3.1415 × 5
   31.4                                                           31.415

3) 2 × 3.14 × 1.14            2 × 3.14 × √2         
    7.1592                           8.8813

4) π × r²
    3.14 × (1.14)²
   4.080744