The plural form of radius is radii.
The plural of "half" is halves.
It is radii which is the plural of radius
Radii is the plural of the word radius.If you have a circle, bisect it with a straight line - that is the diameter. Cut that in half - that is the radius. The radius is the distance from the center to the edge of the circle.A radius is one half the diameter of a circle ( the straight line distance from one point of the edge of a circle to the other side, directly in the middle). The plural form of radius is radii.
radii
the word 'radius-es' doesn't exist, the word 'radii' is the plural of 'radius'
Italy does not have a plural form.
The plural form of him, her, or it is them. (objective pronouns)
Classically, the plural should be radii, (usually pronounced ray-dee-eye) because 'radius' is a Latin word.However, in modern English, radiuses is acceptable.
radius bones radii radiuses
The plural form of beauty is beauties.
The plural form is spelt : subpoenas.
The plural form of quiz is quizzes.
Trout is plural
The plural form of the noun 'sea' is seas.
The plural form for the noun coach is coaches.
The plural form for the noun index is indexes.
The plural form of "atlas" is "atlases."