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Semi-Circle Circumference Calculator

r

(radius)

units

Circumference (C)

units

CopyView Calculation

How to use this Semi-Circle Circumference Calculator 🤔

1. Enter ✎ value for radius (r).
2. As soon as you enter the required input value(s), the Semi-Circle Circumference is calculated immediately, and displaed in the output section (present under input section).

Formula

To calculate the semi-circle circumference, you can use the following formula.

\(C = \) \( (π + 2 ) r \)

where

Calculation

Once you enter the input values in the calculator, the output parameters are calculated.

Examples

The following examples cover how to calcualte the Circumference when radius is given.

1. What is the Circumference of Semi-Circle whose radius is 10 units?

Answer

Given:

• radius, r = 10 units

The formula to find the Circumference of a Semi-Circle is:

C = \( (π + 2 ) r \)

Substitute given values in the above formula.

C = \( ( π + 2) \times10\)

C = 51.42 units

∴ Circumference, C = 51.42 units

2. What is the Circumference of Semi-Circle whose radius is 2 units?

Answer

Given:

• radius, r = 2 units

The formula to find the Circumference of a Semi-Circle is:

C = \( (π + 2 ) r \)

Substitute given values in the above formula.

C = \( ( π + 2) \times2\)

C = 10.28 units

∴ Circumference, C = 10.28 units

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  "input_labels": [
    "r"
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  "input_values": [
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  "input_units": [
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  "input_descriptions": [
    "radius"
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  "examples": [
    {
      "r": 10
    },
    {
      "r": 2
    }
  ],
  "type": "Calculate",
  "title": "Semi-Circle Circumference",
  "category": "Geometry",
  "shape": "Semi-Circle",
  "formula_mathjax": "\\( (π + 2 ) r \\)",
  "formula_mathjax_sub": "\\( ( π + 2) \\times r \\)",
  "formula": "( Math.PI + 2) *  r ",
  "op_label": "Circumference",
  "output_unit": "units",
  "description": "The semi-circle circumference calculator calculates the circumference of a semi-circle by taking its radius as input.",
  "explanation": "The circumference of a semi-circle is the sum of diameter and the length of the semi-circular arc.",
  "examples_data": "<h2>Examples</h2><p>The following examples cover how to calcualte the Circumference when radius is given.</p><div class=\"example\"><h3 class=\"question\"><span class=\"example_n\">1.</span> What is the Circumference of Semi-Circle whose radius is 10 units?</h3><h4 class=\"answer\">Answer</h4><p>Given:</p><ul><li>radius, r = 10 units</ul><p>The formula to find the Circumference of a Semi-Circle is:</p><p class=\"tabspace\">C = \\( (π + 2 ) r \\)</p><p>Substitute given values in the above formula.</p><p class=\"tabspace\">C = \\( ( π + 2) \\times10\\)</p><p class=\"tabspace\">C = 51.42 units</p><p class=\"tabspace answer\">∴ Circumference, C = 51.42 units</p></div><div class=\"example\"><h3 class=\"question\"><span class=\"example_n\">2.</span> What is the Circumference of Semi-Circle whose radius is 2 units?</h3><h4 class=\"answer\">Answer</h4><p>Given:</p><ul><li>radius, r = 2 units</ul><p>The formula to find the Circumference of a Semi-Circle is:</p><p class=\"tabspace\">C = \\( (π + 2 ) r \\)</p><p>Substitute given values in the above formula.</p><p class=\"tabspace\">C = \\( ( π + 2) \\times2\\)</p><p class=\"tabspace\">C = 10.28 units</p><p class=\"tabspace answer\">∴ Circumference, C = 10.28 units</p></div>",
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