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How to Calculate an Arc's Radius
At least two values must be known in order to calculate the radius of an arc. The chord is the distance from one endpoint of the arc to the other. The arc height is the distance from the chord's midpoint to the highest point on the arc. Once these are... More »
Difficulty: Moderate
Source: www.ehow.com

## Arc (geometry)

en.wikipedia.org/wiki/Arc_(geometry)

. Using the intersecting chords theorem (also known as power of a point or secant tangent theorem) it is possible to calculate the ...

## Radius of an Arc or Arch - Math Open Reference

To calculate the radius. Given an arc or segment with known width and height: Segment of a circle. A horizontal base line with an arc on the top. The formula for  ...

## Calculator for Radius of an Arc - Handy Math

Calculates the radius of an arc when the width and height of the arc are given. The length of the arc and the angle subtended by the arc (not shown in figure) are ...

## The Complete Circular Arc Calculator - Handy Math

www.handymath.com/cgi-bin/arc18.cgi?submit=Entry

This calculator calculates for the radius, length, width or chord, height or sagitta, apothem, angle, and area of an arc or circle segment given any two inputs.

## Circle Arc Equations Formulas Geometry Calculator - Radius

www.ajdesigner.com/phpcircle/circle_arc_length_r.php

Geometry calculator solving for circle radius given arc length and central angle.

Purpose: To determine the linear footage (arc length) for a specific curved application. For example, the calculator below can help you answer these questions ...

## ARC LENGTH, RADIUS and CENTRAL ANGLE CALCULATOR

central angle calculator, arc length calculator, radius calculator, trigonometry.

## Sector Calculator - Cleave Books

www.cleavebooks.co.uk/scol/calsect.htm

Where (for brevity) it says 'radius', 'arc' and so on, it should, more correctly, ... A problem not dealt with by this calculator is where the length of the chord (c) and ...

## Radius of an arc - Woodweb

Formulas for determining the radius of an arc, or "eyebrow"

Popular Q&A
Q: How to Calculate a Circle's Radius From Arc Segments.
A: 1. Divide the height of the arc segment by two. For example, if the arc segment height equals six, divide six by two to get three. 2. Square the length of the c... Read More »
Source: www.ehow.com
Q: How to calculate arc radius from arc length and sagitta (arc heig...
A: Subtract the height from the radius to get the apothem. Divide the apothem into the radius and take the inverse cosine of that, and you have half the angle. Dou... Read More »