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## Circular sector

en.wikipedia.org/wiki/Circular_sector

The total area of a circle is \pi r^2 . The area of the sector can be obtained by multiplying the circle's area by the ratio of the angle and 2 \pi ...

## Mathwords: Area of a Sector of a Circle

www.mathwords.com/a/area_sector_circle.htm

Area of a Sector of a Circle. The formula is given below. ... Mathwords: Terms and Formulas from Algebra I to Calculus written, illustrated, and webmastered by ...

## What is the Formula for the Area of a Sector of a Circle? | Virtual Nerd

www.virtualnerd.com/pre-algebra/perimeter-area-volume/circles/circle-sector-area-examples/sector-area-formula

... area of a sector? In this tutorial, you'll learn how to find that formula! Take a look! Keywords: area; circle; sector; area of sector; central angle; radius; n; degree.

## Circle Sector and Segment - Math is Fun

www.mathsisfun.com/geometry/circle-sector-segment.html

You can work out the Area of a Sector by comparing its angle to the angle of a ... is a lengthy reason, but the result is a slight modification of the Sector formula:.

Feb 24, 2013 ... How would you solve for the radius if the area of a sector is given in ft^2 ... you'll use this formula: x/360*C, x= the degree of the angle which in ...

## Area of a sector of a circle - Math Open Reference

www.mathopenref.com/arcsectorarea.html

The formula used to find the area of a circlular sector - a pie-shaped part of a circle.

## Intermediate Test Prep: Math 8 Test (Grade 6) Area of a Sector of a ...

www.studyzone.org/mtestprep/math8/e/circlesector6l.cfm

Formula for the Area of a sector of a Circle. Use the formula. Measure of the central angle/360 * Π r2. ( "r" is the radius of the circle). Leave your answer in terms ...

## Radians - Mathematics A-Level Revision - Revision Maths

The area of a sector of a circle is ½ r² ∅, where r is the radius and ∅ the angle in radians subtended by the arc at the centre of the circle. So in the below diagram,  ...

## Cool math .com - The Trigonometry of Circles - arc length, area of a ...

www.coolmath.com/reference/circles-trigonometry

Sector area of a circle in radians: ... The Quadratic Formula · Solving 2x2 Systems of Equations · Graphs to Know and ...

## Area of a Sector - BBC

www.bbc.co.uk/bitesize/intermediate2/mathematics/mathematics_1/circle/revision/2/

Area of a Sector. Remember that the Area of a circle = \pi r^2. The formula used to calculate the Area of a Sector of a circle, as the sector is a fraction of the area ...

### Area of Sectors and Segments of Circles - Regents Exam Prep Center

www.regentsprep.org

Area of Sectors and Segments of Circles. ... The second formula can be algebraically reduced, but it is easier to remember that you are dealing with fractional ...

### Sectors, Areas, and Arcs - Purplemath

www.purplemath.com

Explains formulas for areas of sectors of circles and lengths of arcs. Demonstrates how to use the ... The area A of a circle with radius r is given by A = πr<sup>2</sup>.

### Finding the Area of a Sector: Formula & Practice Problems - Video ...

study.com

In this lesson, you'll review your knowledge of circle vocabulary and then discover how to calculate the area of a sector of a circle. The lesson...