Circumradius of Decagon given Inradius Calculator

✖Inradius of Decagon is the length of the straight line from the center to any point on the incircle of the Decagon.ⓘ Inradius of Decagon [r_i]

+10%

-10%

✖Circumradius of Decagon is the radius of a circumcircle touching each of the Decagon's vertices.ⓘ Circumradius of Decagon given Inradius [r_c]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Decagon Formula PDF PDF Image

Circumradius of Decagon given Inradius Solution

STEP 0: Pre-Calculation Summary

Formula Used

Circumradius of Decagon = (1+sqrt(5))/2*(2*Inradius of Decagon)/sqrt(5+(2*sqrt(5)))
r_c = (1+sqrt(5))/2*(2*r_i)/sqrt(5+(2*sqrt(5)))
This formula uses 1 Functions, 2 Variables

Functions Used

sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)

Variables Used

Circumradius of Decagon - (Measured in Meter) - Circumradius of Decagon is the radius of a circumcircle touching each of the Decagon's vertices.
Inradius of Decagon - (Measured in Meter) - Inradius of Decagon is the length of the straight line from the center to any point on the incircle of the Decagon.

STEP 1: Convert Input(s) to Base Unit

Inradius of Decagon: 15 Meter --> 15 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

r_c = (1+sqrt(5))/2*(2*r_i)/sqrt(5+(2*sqrt(5))) --> (1+sqrt(5))/2*(2*15)/sqrt(5+(2*sqrt(5)))

Evaluating ... ...

r_c = 15.771933363574

STEP 3: Convert Result to Output's Unit

15.771933363574 Meter --> No Conversion Required

FINAL ANSWER

15.771933363574 ≈ 15.77193 Meter <-- Circumradius of Decagon

(Calculation completed in 00.007 seconds)

You are here -

Home » Math » Geometry » 2D Geometry » Decagon » Circumradius of Decagon » Circumradius of Decagon given Inradius

Credits

Created by Mona Gladys

St Joseph's College (SJC), Bengaluru

Mona Gladys has created this Calculator and 2000+ more calculators!

Verified by Shweta Patil

Walchand College of Engineering (WCE), Sangli

Shweta Patil has verified this Calculator and 1100+ more calculators!

< Circumradius of Decagon Calculators

Circumradius of Decagon given Diagonal across Three Sides

LaTeX Go Circumradius of Decagon = (1+sqrt(5))/2*(2*Diagonal across Three Sides of Decagon)/sqrt(14+(6*sqrt(5)))

Circumradius of Decagon given Diagonal across Four Sides

LaTeX Go Circumradius of Decagon = (1+sqrt(5))/2*Diagonal across Four Sides of Decagon/sqrt(5+(2*sqrt(5)))

Circumradius of Decagon given Diagonal across Five Sides

LaTeX Go Circumradius of Decagon = Diagonal across Five Sides of Decagon/2

Circumradius of Decagon given Width

LaTeX Go Circumradius of Decagon = Width of Decagon/2

Circumradius of Decagon given Inradius Formula

LaTeX Go

Circumradius of Decagon = (1+sqrt(5))/2*(2*Inradius of Decagon)/sqrt(5+(2*sqrt(5)))
r_c = (1+sqrt(5))/2*(2*r_i)/sqrt(5+(2*sqrt(5)))

What is a Decagon?

Decagon is a polygon with ten sides and ten vertices. A decagon, like any other polygon, can be either convex or concave, as illustrated in the next figure. A convex decagon has none of its interior angles greater than 180°. To the contrary, a concave decagon (or polygon) has one or more of its interior angles greater than 180°. A decagon is called regular when its sides are equal and also its interior angles are equal.

How to Calculate Circumradius of Decagon given Inradius?

Circumradius of Decagon given Inradius calculator uses Circumradius of Decagon = (1+sqrt(5))/2*(2*Inradius of Decagon)/sqrt(5+(2*sqrt(5))) to calculate the Circumradius of Decagon, The Circumradius of Decagon given Inradius formula is defined as a line connecting the circumcenter of the circle that touches all vertices of the Decagon and any point on the circle, calculated using its inradius. Circumradius of Decagon is denoted by r_c symbol.

How to calculate Circumradius of Decagon given Inradius using this online calculator? To use this online calculator for Circumradius of Decagon given Inradius, enter Inradius of Decagon (r_i) and hit the calculate button. Here is how the Circumradius of Decagon given Inradius calculation can be explained with given input values -> 15.77193 = (1+sqrt(5))/2*(2*15)/sqrt(5+(2*sqrt(5))).

FAQ

What is Circumradius of Decagon given Inradius?

The Circumradius of Decagon given Inradius formula is defined as a line connecting the circumcenter of the circle that touches all vertices of the Decagon and any point on the circle, calculated using its inradius and is represented as r_c = (1+sqrt(5))/2*(2*r_i)/sqrt(5+(2*sqrt(5))) or Circumradius of Decagon = (1+sqrt(5))/2*(2*Inradius of Decagon)/sqrt(5+(2*sqrt(5))). Inradius of Decagon is the length of the straight line from the center to any point on the incircle of the Decagon.

How to calculate Circumradius of Decagon given Inradius?

The Circumradius of Decagon given Inradius formula is defined as a line connecting the circumcenter of the circle that touches all vertices of the Decagon and any point on the circle, calculated using its inradius is calculated using Circumradius of Decagon = (1+sqrt(5))/2*(2*Inradius of Decagon)/sqrt(5+(2*sqrt(5))). To calculate Circumradius of Decagon given Inradius, you need Inradius of Decagon (r_i). With our tool, you need to enter the respective value for Inradius of Decagon 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 Circumradius of Decagon?

In this formula, Circumradius of Decagon uses Inradius of Decagon. We can use 3 other way(s) to calculate the same, which is/are as follows -

Circumradius of Decagon = Width of Decagon/2
Circumradius of Decagon = Diagonal across Five Sides of Decagon/2
Circumradius of Decagon = (1+sqrt(5))/2*Diagonal across Four Sides of Decagon/sqrt(5+(2*sqrt(5)))

Home

FREE PDFs

🔍 Search