Answer :

Final answer:

A spherical radius is not commonly dimensioned with the abbreviation 'SR' preceding the numerical value. It's simply represented by the symbol 'r' and used in calculations for the cross-sectional area, surface area and volume of the sphere.

Explanation:

False, a spherical radius is not commonly dimensioned with the abbreviation SR preceding the numerical value. The term 'radius' refers to the distance from the center of a sphere (or circle) to its edge, and it is simply represented by the symbol 'r'. For example, in a sphere with a radius of 0.750mm, the cross-sectional area would be calculated using the formula A = πr², and it is not necessary to precede the numerical value with 'SR'. A sphere's surface area and volume would also be calculated using the radius, represented by formulas [A] = L² and [V] = L³ respectively. However, it is important to note that the precision of these calculations is often limited by the number of significant figures in the radius measurement.

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