Math Is Fun Forum

paulb203

Member

Registered: 2023-02-24

Posts: 345

What is the surface area of a circle?

Not the area of a circle, but the surface area of a circle.

---

Prioritise. Persevere. No pain, no gain.

Bob

Administrator

Registered: 2010-06-20

Posts: 10,640

Re: What is the surface area of a circle?

?? Surface area is the same as area for a circle.  How did this question arise?

Bob

---

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

KerimF

Member

From: Aleppo-Syria

Registered: 2018-08-10

Posts: 256

Re: What is the surface area of a circle?

Perhaps he meant the surface area of a sphere which is 4*pi*R^2.

---

Every living thing has no choice but to execute its pre-programmed instructions embedded in it (known as instincts).
But only a human may have the freedom and ability to oppose his natural robotic nature.
But, by opposing it, such a human becomes no more of this world.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,802

Re: What is the surface area of a circle?

Hi paulb203,

---

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

amnkb

Member

Registered: 2023-09-19

Posts: 253

Re: What is the surface area of a circle?

Not the area of a circle, but the surface area of a circle.

a circle is in the plane so it's flat
It doesnt have a 'surface' to have an area of