Question

find the surface area of this sphere.
use 3.14 for π.
surface area of a sphere
sa = 4πr²
sa = ? m²
round your answer to the nearest tenth

Explanation:

Step1: Substitute the value of \( r \) into the formula

Given \( r = 1\) m and the formula \( SA=4\pi r^{2}\), substitute \( r = 1\) into the formula:
\( SA = 4\times3.14\times(1)^{2}\)

Step2: Calculate the value

First, calculate \((1)^{2}=1\). Then, \(4\times3.14\times1=12.56\)

Answer:

\(12.6\)