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Area of a Circle when radius is given Solution

STEP 0: Pre-Calculation Summary
Formula Used
area_of_circle = pi*Radius^2
A = pi*r^2
This formula uses 1 Constants, 1 Variables
Constants Used
pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288
Variables Used
Radius - Radius is a radial line from the focus to any point of a curve. (Measured in Centimeter)
STEP 1: Convert Input(s) to Base Unit
Radius: 18 Centimeter --> 0.18 Meter (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
A = pi*r^2 --> pi*0.18^2
Evaluating ... ...
A = 0.101787601976309
STEP 3: Convert Result to Output's Unit
0.101787601976309 Square Meter --> No Conversion Required
FINAL ANSWER
0.101787601976309 Square Meter <-- Area of Circle
(Calculation completed in 00.016 seconds)

Area of a Circle when radius is given Examples

You can try more Area of a Circle when radius is given examples here -

  • Area of Cricket ground with 60m radius will be 3.14*60^2 = 11309.73 m2Try

11 Other formulas that you can solve using the same Inputs

Total Surface Area of a Cone
total_surface_area = pi*Radius*(Radius+sqrt(Radius^2+Height^2)) Go
Lateral Surface Area of a Cone
lateral_surface_area = pi*Radius*sqrt(Radius^2+Height^2) Go
Surface Area of a Capsule
surface_area = 2*pi*Radius*(2*Radius+Side) Go
Volume of a Capsule
volume = pi*(Radius)^2*((4/3)*Radius+Side) Go
Volume of a Circular Cone
volume = (1/3)*pi*(Radius)^2*Height Go
Volume of a Circular Cylinder
volume = pi*(Radius)^2*Height Go
Bottom Surface Area of a Cylinder
bottom_surface_area = pi*Radius^2 Go
Base Surface Area of a Cone
base_surface_area = pi*Radius^2 Go
Top Surface Area of a Cylinder
top_surface_area = pi*Radius^2 Go
Volume of a Hemisphere
volume = (2/3)*pi*(Radius)^3 Go
Volume of a Sphere
volume = (4/3)*pi*(Radius)^3 Go

4 Other formulas that calculate the same Output

Area of a Circle when area of sector is given
area_of_circle = Area of Sector*(360/Central Angle) Go
Area of a Circle when diameter is given
area_of_circle = (pi/4)*Diameter^2 Go
Area of circle given area of sector with angle 120 degrees
area_of_circle = 3*Area of Sector Go
Area of circle when area of quadrant is given
area_of_circle = 4*Area Go

Area of a Circle when radius is given Formula

area_of_circle = pi*Radius^2
A = pi*r^2

What is area of a circle when radius is given?

The area of a circle when the radius is given is the region occupied by the circle in a two-dimensional plane of radius "r". Although often referred to as the area of a circle in informal contexts, strictly speaking, the term disk refers to the interior of the circle, while the circle is reserved for the boundary only, which is a curve and covers no area itself. Therefore, the area of a disk is the more precise phrase for the area enclosed by a circle.

How to Calculate Area of a Circle when radius is given?

Area of a Circle when radius is given calculator uses area_of_circle = pi*Radius^2 to calculate the Area of Circle, The area of a circle when the radius is given is the area enclosed by a circle of radius r. Area of Circle and is denoted by A symbol.

How to calculate Area of a Circle when radius is given using this online calculator? To use this online calculator for Area of a Circle when radius is given, enter Radius (r) and hit the calculate button. Here is how the Area of a Circle when radius is given calculation can be explained with given input values -> 0.101788 = pi*0.18^2.

FAQ

What is Area of a Circle when radius is given?
The area of a circle when the radius is given is the area enclosed by a circle of radius r and is represented as A = pi*r^2 or area_of_circle = pi*Radius^2. Radius is a radial line from the focus to any point of a curve.
How to calculate Area of a Circle when radius is given?
The area of a circle when the radius is given is the area enclosed by a circle of radius r is calculated using area_of_circle = pi*Radius^2. To calculate Area of a Circle when radius is given, you need Radius (r). With our tool, you need to enter the respective value for Radius and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Area of Circle?
In this formula, Area of Circle uses Radius. We can use 4 other way(s) to calculate the same, which is/are as follows -
  • area_of_circle = (pi/4)*Diameter^2
  • area_of_circle = Area of Sector*(360/Central Angle)
  • area_of_circle = 4*Area
  • area_of_circle = 3*Area of Sector
Where is the Area of a Circle when radius is given calculator used?
Among many, Area of a Circle when radius is given calculator is widely used in real life applications like Area of Cricket ground with 60m radius will be 3.14*60^2 = 11309.73 m2. Here are few more real life examples -
  • Area of Cricket ground with 60m radius will be 3.14*60^2 = 11309.73 m2
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