Question

find the surface area of the sphere shown below. 10 mm use 3.14 or a calculator button for pi and provide an answer accurate to two decimal places. label required

Explanation:

Step1: Find the radius

Given diameter \(d = 10\) mm, radius \(r=\frac{d}{2}\).
\(r=\frac{10}{2}=5\) mm.

Step2: Use the surface - area formula for a sphere

The formula for the surface area of a sphere is \(A = 4\pi r^{2}\).
Substitute \(r = 5\) and \(\pi=3.14\) into the formula:
\(A=4\times3.14\times5^{2}\).
First calculate \(5^{2}=25\), then \(4\times3.14\times25\).
\(4\times25 = 100\), and \(100\times3.14=314.00\) \(mm^{2}\).

Answer:

\(314.00\) \(mm^{2}\)