How big is a sphere with a volume of 1.36 billion kilometers?

Answer 1

As we're all acutely aware, the volume of a sphere in terms of its radius is

V = 4/3 (pi) (radius)3

In your question, the volume is given, and the radius is to be yet found.

We can use the same formula, but first, we have to massage it in order

to highlight the radius as the dependent variable.

Multiply each side of the formula by 3/4 pi :

3 V/4 pi = (radius)3

Take the cube root of each side:

Radius = cube root of (3 V/4 pi )

or, if you need it made even easier ...

Radius = 0.62035 (Volume)1/3

The rest is trivial. There's no doubt whatsoever that you can do it quickly on your own.

Also, by the way . . . "kilometers" are not a volume. "Cubic kilometers" are.