Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : May 29, 2023


Semicircle Perimeter Calculator available here makes your calculations easy and simple. It takes the input as radius of semicircle and produces the exact output within no time.

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Area of a Semicircle Calculator

Semicircle Radius


Formula for Semicircle Perimeter

The universal formula to calculate the perimeter of a semicircle is provided here.

Perimeter of Semicircle = (π + 2) * r

Where, r is the radius of the semicircle.

How to solve Perimeter of a Semicircle?

Following the simple steps to solve the semicircle perimeter effortlessly in less amount of time. Check out them and follow whenever required.

  • Take the radius of semicircle.
  • The formula to check the Perimeter of Semicircle is Perimeter = (π + 2) * radius.
  • Substitute the given radius value in the above formula.
  • Also, put π values as 3.14 in the formula.
  • Simplify the obtain expression to get the perimeter.

Example of Calculating Perimeter of Semicircle

Question: Find perimeter of a semicircle of radius 24 cm?

Solution:

Given that,

Radius of semicircle (r) = 24 cm

Perimeter of a Semicircle = (π + 2) * r

Put the radius value in the formula.

Perimeter = (π + 2) * 24

Substitute constant π value in the above equation

Perimeter = (3.14 + 2) * 24

= 5.14 * 24

= 123.36

∴ Semicircle perimeter of radius 24 cm is 123.36 cm.

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Frequently Asked Questions on Semicircle Perimeter

1. How do you define perimeter of a semicircle?

Semicircle is formed when a line passing through the center and that joins two ends on a circle. Perimeter of a semicircle is the sum of the half of the circumference of circle and its diameter. As we know that, perimeter of circle is 2πr or πd. So, perimeter of a semicircle is 1/2 (πd) +d or πr +2r. Formula is

Perimeter of a Semicircle = d (1/2 π + 1) or r (π + 1)

Where, r is the radius and d is the diameter.

2. What is the perimeter of a semicircle with a diameter of 12 cm?

Given diameter of semicircle = 12 cm

Semicircle Perimeter = 1/2 (πd) +d

= 1/2 (π * 12) + 12

= 6 * π + 12

= 6 * 3.14 + 12

= 18.84 + 12 = 30.84

Perimeter = 30.84

3. Where can I get the process to find the perimeter of semicircle?

You can find the detailed procedure to find the semicircle perimeter by knowing radius on our page.