Respuesta :

mhanifa

Answer:

  • ≈ 2533 cm² leather used

Step-by-step explanation:

The ball has the form of sphere

Diameter is:

  • d = 28.4 cm

Surface area of a sphere is:

  • A = 4πr²= 4π(d/2)² = πd²

Substitute values:

  • A = 3.14*28.4² = 2532.5984 cm² ≈ 2533 cm²

zukhrap

Answer: 806.46pi cm^2

Step-by-step explanation: