Question

the radius r of a sphere is 9.4m. calculate the spheres surface area a. use the value 3.14 for π, and round your answer to the nearest tenth.

Explanation:

Step1: Recall the formula for the surface area of a sphere

The formula for the surface area of a sphere is \(A = 4\pi R^{2}\).

Step2: Substitute the given values into the formula

Given \(R = 9.4\)m and \(\pi=3.14\), we substitute these values into the formula:

$$
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$$

Step3: Calculate the value

$$ 12.56\times88.36=1109.8016 $$

Step4: Round to the nearest tenth

Rounding \(1109.8016\) to the nearest tenth gives \(1109.8\)

Answer:

\(1109.8\space m^{2}\)