Question

I need some help finding the volume of a sphere with a diameter of 18.6cm. The website says the answer I got from my calculator was wrong! Help would be greatly appreciated!

Answer 1

Answer:

V ≈ 3367.6 cm³

Step-by-step explanation:

The volume (V) of a sphere is calculated as

V = $\frac{4}{3}$ πr³ ( r is the radius )

Here D = 18.6 , then r = 18.6 ÷ 2 = 9.3 , so

V = $\frac{4}{3}$ × 3.14 × 9.3³

   = $\frac{4}{3}$ × 3.14 × 804.357

   = $\frac{4(3.14)(804.357)}{3}$

   ≈ 3367.6 cm³ ( to the nearest tenth )