Question

find the surface area of a baseball whose diameter is 28 cm.
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Answer 1

2464cm²

Step-by-step explanation:

r = 28/2 = 14

surface are of base ball = 4/3πr²

Answer 2

Surface area of baseball is

$\frac{4}{3} \pi {r}^{2}$

$diameter = 28 \\ radius = \frac{28}{2} = 14 \: cm$

$area = \frac{4}{3} \times 3.14\times 14 \times 14 \\ \\ area = 1.3 \times 3.14 \times 196 \\ area = 4.082 \times 196 \\ area = 800 \: {cm}^{2}$