If you mean 7.5 and 7.513106 then another dimension is needed to work out its volume.
It is the volume of the figure.
The measure of the amount of space a solid figure is Volume
The measure of the amount of space a solid figure is Volume
You are finding the volume of the solid figure.To find the volume of a solid figure, depending on the size of the object, you can use a graduated cylinder. You can fill the cylinder up to x amount of water and then measure the amount after dropping the solid into the water, and then subtract the amount before, from the amount after, to get the volume of a solid. You can also use simple mathematics to figure the volume of the solid. There are different formulas for calculating volume for different types of solid figures.
volume
There is no "space" inside a solid figure (body).However the solid figure can be measured in terms of its volume (the amount of space it occupies).
It is volume.
Its volume.
It is its volume which is measured in cubic units
That's a description of the volume of a solid. The volume of an object is the amount of 3-dimentional space that object occupies.
Volume
No solid figure has a surface area equal to its volume. That would not be possible as the units of measure are different.