Area of a Semi-circle Calculator


What is Area of a Semi-Circle Calculator?

Cuemath's Area of Semi-Circle Calculator is an online tool that helps to calculate the area of a Semi-Circle with a given radius within a few seconds.

How to Use the Area of a Semi-Circle Calculator?

Please follow the below steps to find the area of Semi-Circle:

  • Step 1: Enter the radius of the Semi-Circle in the given input box.
  • Step 2: Click on the "Calculate" button to find the area.
  • Step 3: Click on the "Reset" button to find the area for different values of the radius.

How to Find the Area of Semi-Semi-Circle?

Area of Semi-Semi-Circle is defined as the amount of space enclosed within the boundary of a Semi-Circle.

                                        Area of a semi-Semi-Circle = (π r2) / 2  square units

where,'r' is radius of Semi-Circle and π(Pi) is the mathematical constant with an approximate value of 3.14.

Solved Example:

Find the area of semi-circle if the radius is equal to 7 units.


      Area of semi-Semi-Circle =  (π r2) / 2.

                           =  (3.14× 7×7)/ 2 square units.

                           =  76.93 square units.

∴ Area of Semi-Circle   = 76.93 square units.  

Similarly, you can try the calculator and find the area of semi-circle which has the following radius.

  • 3 units
  • 7 units
  • 15 units

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