We are asked to find the surface area of a sphere to the nearest tenth. The diameter of the sphere is given as 32 m.

GeometrySurface AreaSphereDiameterRadiusApproximation
2025/4/14

1. Problem Description

We are asked to find the surface area of a sphere to the nearest tenth. The diameter of the sphere is given as 32 m.

2. Solution Steps

First, we need to find the radius of the sphere. The radius is half of the diameter.
radius=diameter2radius = \frac{diameter}{2}
r=322=16r = \frac{32}{2} = 16 m
Next, we need to use the formula for the surface area of a sphere.
SurfaceArea=4πr2Surface Area = 4\pi r^2
Substitute r=16r = 16 into the formula:
SurfaceArea=4π(16)2Surface Area = 4\pi (16)^2
SurfaceArea=4π(256)Surface Area = 4\pi (256)
SurfaceArea=1024πSurface Area = 1024\pi
Now, we need to approximate the value of the surface area to the nearest tenth.
Using π3.14159\pi \approx 3.14159:
SurfaceArea1024×3.14159Surface Area \approx 1024 \times 3.14159
SurfaceArea3216.99024Surface Area \approx 3216.99024
Rounding to the nearest tenth:
SurfaceArea3217.0Surface Area \approx 3217.0

3. Final Answer

The surface area of the sphere is approximately 3217.0 m2m^2.

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