If the radius of a sphere is 5 cm, what is the volume in cubic cm?

Study for the ABSA 4th Class Power Engineer Test. Explore questions with hints and explanations. Get ready to ace the exam!

To determine the volume of a sphere, the formula used is ( V = \frac{4}{3} \pi r^3 ), where ( V ) is the volume and ( r ) is the radius of the sphere.

Given that the radius ( r ) is 5 cm, we can substitute this value into the formula:

  1. Calculate ( r^3 ):

[

r^3 = 5^3 = 125 \text{ cm}^3

]

  1. Now substitute ( r^3 ) into the volume formula:

[

V = \frac{4}{3} \pi (125)

]

  1. Using ( \pi ) approximately as 3.14 for calculation purposes:

[

V \approx \frac{4}{3} \times 3.14 \times 125

]

  1. First, calculate ( \frac{4 \times 3.14 \times 125}{3} ):

[

4 \times 3.14 = 12.56

]

[

12.56 \times 125 = 1570

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