The diameter of the spherical globe that has a surface area of about 1018 in.² is: 18 inches.
What is the Surface Area of a Sphere?
Surface area = 4πr², where r is the radius, which is half of the diameter.
The globe is a sphere with a surface area of 1018 in.².
1018 = 4πr²
Solve for r
1018 = 4πr²
1018/4π = r²
81.0 = r²
r = √81.0
r = 9 in.
Diameter = 2(r) = 2(9)
Diameter of the sphere = 18 in.
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