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A perfectly spherical orange is split into four equal sections. If the radius of the orange is 4 centimeters, what is the total surface area of one slice?

A. \(16 \pi \, \text{cm}^2\)
B. \(32 \pi \, \text{cm}^2\)
C. \(24 \pi \, \text{cm}^2\)
D. [tex]\(64 \pi \, \text{cm}^2\)[/tex]

Sagot :

To solve this problem, we need to calculate the total surface area of the spherical orange and then determine the surface area for one of its four equal sections.

### Step 1: Calculate the total surface area of the sphere

The formula for the surface area \(A\) of a sphere is given by:
[tex]\[ A = 4 \pi r^2 \][/tex]
where \(r\) is the radius of the sphere.

Given that the radius \(r\) is 4 centimeters, we can substitute this value into the formula to find the total surface area.

[tex]\[ A = 4 \pi (4)^2 \][/tex]
[tex]\[ A = 4 \pi \times 16 \][/tex]
[tex]\[ A = 64 \pi \text{ square centimeters} \][/tex]

### Step 2: Calculate the surface area of one slice

Since the orange is split into four equal sections, each section will have one-fourth of the total surface area.

[tex]\[ \text{Surface area of one slice} = \frac{64 \pi}{4} \][/tex]
[tex]\[ \text{Surface area of one slice} = 16 \pi \text{ square centimeters} \][/tex]

Thus, the surface area of one slice of the orange is \(16 \pi \) square centimeters. Therefore, the correct answer is:

[tex]\[ 16 \pi \text{ cm}^2 \][/tex]