Question

The surface area of a baseball is 177cm what is the diameter of the baseball ( use 3.14 for pi )

Answer 1

diameter = 7.5
The formula for surface area of a sphere is
$A=4 \pi r^2$
plug in the values we know.
$177=4(3.14)r^2$
Divide both sides by 4(3.14)
14.0923= r^2
take the square root of both sides 
r≈3.75 
multiply by 2 to find the diameter 
diameter = 7.5

Answer 2

The diameter of the baseball is 15 cm

Given that;

Surface area of a baseball = 177cm²

Find:

The diameter of the baseball

Computation:

Surface area of a baseball = πr²

177 = πr²

177 = (3.14)r²

r² = 177 / 3.14

r² = 56.3694

r = 7.5 cm (Approx.)

The diameter of the baseball = 2(r)

The diameter of the baseball = 15 cm

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