How to find the volume of sphere?

Love the beautiful faux artificial spheres I am finding everywhere. I don’t have a green thumb and I hate watering. These beautiful plants are perfect for my patio. We get direct sun all day long by our pool, so real flowers and plants don’t do great;) But, did you know that a lot of these faux sphere plants can be separated into two plants . Yep! simple plant hack. Budget friendly artificial plants , two for the price of one ;) . . #artificialplants #fauxgreenery #fakeplants #fauxplants #planth