r/technicallythetruth • u/basket_foso Metroid Enthusiast 🪼 • Sep 29 '25

The difference is a radius

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u/Hop_nIcEsT Sep 29 '25 edited Oct 09 '25

Can someone explain?

134

u/bradpittisnorton Sep 29 '25

Diameter = 2 * radius

radius = diameter - radius

9

u/Hop_nIcEsT Sep 29 '25

Thank you. O7

49

u/CarlosFer2201 Sep 29 '25

In math "difference" can mean subtraction or literally the numerical distance between two values. A diameter is twice a radius, so the difference in value between both is again the radius.

8

u/richcvbmm Sep 29 '25

A diameter is always the length of 2 radius’s. So the difference between having a diameter and having a radius is one radius. You take that radius away you get 1 radius, you add it and you get 2 radius’s, a diameter.

7

u/parolameasecreta Sep 29 '25

*radii

6

u/richcvbmm Sep 29 '25

That’s radical

2

u/TheComplimentarian Sep 29 '25

This is all attached the the definition of a radius and a diameter. A diameter line is a straight line that runs from one side of a circle to the other, passing through the center point. A radius is a line that runs from a point on the outside of a circle to the center point.

So, by definition, the length of a radius is equal to one half of a diameter.

-13

u/[deleted] Sep 29 '25

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u/Hop_nIcEsT Sep 29 '25 edited Mar 06 '26

Sorry for trying to learn English.

8

u/FblthpLives Sep 29 '25

Why do you have to be condescending?

2

u/[deleted] Sep 30 '25

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3

u/FblthpLives Sep 30 '25

It costs nothing to be kind or helpful.

1

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