![✉️ Why is the area of a circle π·r² (pi r squared)? – 🥇 Scalar Scientific Calculator App, Charts & Scripts ✉️ Why is the area of a circle π·r² (pi r squared)? – 🥇 Scalar Scientific Calculator App, Charts & Scripts](https://scalarmath.org/wp-content/uploads/2020/10/area-of-a-circle-3-1024x935.png)
✉️ Why is the area of a circle π·r² (pi r squared)? – 🥇 Scalar Scientific Calculator App, Charts & Scripts
![If curved surface area of a solid sphere is S and volume is V, let us write the value of [not putting the value of π] If curved surface area of a solid sphere is S and volume is V, let us write the value of [not putting the value of π]](https://static.insightsonindia.in/ncertusercontent/solutions/?domain=gF&l=PROJ20888/1535795028663591.jpg)
If curved surface area of a solid sphere is S and volume is V, let us write the value of [not putting the value of π]
Why is the formula for surface area of a sphere [math]4\pi r^2[/math], and why is volume [math]\frac{4}{3}\pi r^3[/math]? - Quora
![SOLVED:The function V described by V(r)=4 πr^2 gives the surface area of a sphere with radius r (AREA OF A SPHERE CAN'T COPY) Find the surface area when the radius is 3 SOLVED:The function V described by V(r)=4 πr^2 gives the surface area of a sphere with radius r (AREA OF A SPHERE CAN'T COPY) Find the surface area when the radius is 3](https://cdn.numerade.com/previews/0771d42f-03a1-4b94-882b-e9a86ce3f6ca.gif)
SOLVED:The function V described by V(r)=4 πr^2 gives the surface area of a sphere with radius r (AREA OF A SPHERE CAN'T COPY) Find the surface area when the radius is 3
![calculus - Show that the volume of a sphere of radius $r$ is $V = \frac{4}{3} \pi r^3$ - Mathematics Stack Exchange calculus - Show that the volume of a sphere of radius $r$ is $V = \frac{4}{3} \pi r^3$ - Mathematics Stack Exchange](https://i.stack.imgur.com/YFxe7.png)