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Updated index.md (#19365)

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Made some change (π is not = 22/7 but only ≈(approximately equal to)
changed 'pi' to π
This commit is contained in:
Shreyas Sunil Kulkarni
2018-10-16 03:07:37 +05:30
committed by Aditya
parent c3eb91b609
commit 978c88a36c
1 changed files with 5 additions and 5 deletions
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10
client/src/pages/guide/english/mathematics/area-of-a-circle/index.md
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@ -5,13 +5,13 @@ title: Area of a Circle
The area of a circle is all the space inside a circle's circumference. The area of a circle is all the space inside a circle's circumference.
If 'r' is the radius of circle, its area is calculated with formula pi*r<sup>2</sup> where pi is mathematical constant. If 'r' is the radius of circle, its area is calculated with formula πr<sup>2</sup> where π is mathematical constant.
pi = 22/7 = 3.141592.... π ≈ 22/7 ≈ 3.141592....
A = pi *r<sup>2</sup>, r is the radius of circle A = π *r<sup>2</sup>, r is the radius of circle
A = pi * {d<sup>2</sup>/4}, d is the diameter of circle, d=2* r A = π * {d<sup>2</sup>/4}, d is the diameter of circle, d=2* r
![alt](http://areacircle.com/Area_of_a_circle_basics.png) ![alt](http://areacircle.com/Area_of_a_circle_basics.png)
@ -28,7 +28,7 @@ Diameter (d) - The length of the line that passes across the circle through the
Pi (<span class="texhtml">π</span>) - A mathematical constant which is approximated as 3.14 Pi (<span class="texhtml">π</span>) - A mathematical constant which is approximated as 3.14
#### Formula #### Formula
Area = π × r2 Area = π × r<sup>2</sup>
###### Given radius of the circle ###### Given radius of the circle