Question

Find the surface area of a sphere of diameter 56 cm?
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Answer 1

Answer:

Click here to get an answer to your question ✍️ calculate a surface area of sphere diameter 56cm and volume of solid ...

Answer 2

Answer:

The surface area of sphere is $9856cm^{2}$

Explanation:

Given: The diameter of a sphere is 56 cm.

Find : The surface area of a sphere

Solution:

The area covered by a sphere's outer surface in three-dimensional space is known as its surface area. A sphere, like a circle, is a three-dimensional solid with a round shape.

The formula of surface area of sphere is $4\pi r^{^{2}}$

Where , r is the radius of a sphere , which is half of the diameter.

So,

$Radius=\frac{diameter}{2} \\=\frac{56}{2} \\=28cm$

Now,

$4\pi r^{^{2}}\\=4\times \frac{22}{7}\times 28\times 28\\=9856cm^{2}$

Hence, the surface area of sphere is $9856cm^{2}$.

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