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Collection of online calculators which will help you to solve mathematical problems with their step by step solution at just a mouse click.
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Plots & Geometry calculators
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Area >> Circle calculator
Area

1  Circle
2  SemiCircle
3  RegularHexagon
4  Square
5  Rectangle
6  Parallelogram
7  Rhombus
8  Trapezium
9  Scalene Triangle
10  Rightangle Triangle
11  Equilateral Triangle
12  Isoceles Triangle
13  SectorSegment
Area
>>
Circle
Area 1 of 13
I know that for a circle
Radius
Diameter
Circumference
Perimeter
Area
=
. From this find out
Radius
Diameter
Circumference
Perimeter
Area
of the circle.
`pi = `
22/7
3.14159
Solution
Circle Formula
Area Formula
Solution
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Area of Circle
Area
`(A) = pi r^2`
Circumference
`(C) = 2 pi r = pi d`
Diameter
`(d) = 2 r`
Example :
I know that for a circle Radius = 10 . From this find out Area of the circle.
`"Here radius " (r)=10 "(Given)"`
``
`"Diameter " (d)= 2 * r`
` = 2 * 10`
` = 20`
`"Perimeter" = 2 pi r`
` = 2 * 22/7 * 10`
` = 440/7`
`Area = pi r^2`
` = 22/7 * (10)^2`
` = 2200/7`
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