Skip to page content |

Tiscali Quicklinks. Please visit our Accessibility Page for a list of the Access Keys you can use to find your way around the site, skip directly to the main navigation, to the page content, or to more links within reference.

Advertisement starts

Advertisement ends

Content Starts Here

sector (mathematics)

encyclopaedia header
Encyclopaedia Search
Click a letter for the index
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Or search the encyclopaedia:
 
 
 
all results tagged with the © symbol denotes content that is relevant to the national curriculum

Sector (mathematics)


In geometry, part of a circle enclosed by two radii and the arc that joins them. A minor sector has an angle at the centre of the circle of less than 180°. A major sector has an angle at the centre of the circle of more than 180°.

The area of a sector is found by dividing the angle at the centre by 360 and multiplying by πr2, where r is the radius of the circle.

© Research Machines plc 2008. All rights reserved. Helicon Publishing is a division of Research Machines plc.


 
Back
 

Advertisement starts

Advertisement ends



arc
chord (geometry)
circle
circle theorem
circumference
cone (geometry)
congruent
cosine
cross-section
cube (geometry)
cuboid
cylinder (geometry)
elevation, angle of
geometry
hexagon
octagon
parallelogram
pentagon
polygon
prism (mathematics)
pyramid (geometry)
Pythagoras' theorem
quadrant
quadrilateral
radius (mathematics)
rectangle
rhombus
sector (mathematics)
similar
similar triangles
sine
sphere
square
tangent (circle)
tangent (trigonometry)
tetrahedron
three-dimensional
trapezium
triangle (geometry)
trigonometry
two-dimensional

Related Links

Côte d'Ivoire Flag
Côte d'Ivoire Flag Orange stands for the savannah. White symbolizes the country's rivers. Green represents the forests. Effective date: 3 December 1959. >>

Advertorial

AdvertorialFind out how to buy the things you've always wanted and sell the things you don't on ebay.

Advertisement starts

Advertisement ends

More Links Within This Section

-->
encylopaedia

Page Footer

print now Print now send to a friend Send to a friend related articles Related articles related products Related products

Check shares

Check shares
Look up latest prices
more...

Best Loans

Best Loans
Search for the best rate.
more...

Dating

Dating
Find the love of your life
more...

TV guide

TV Guide
What's on the box?
more...
| Advertise | Press | Work at Tiscali | Site Map | Service Status | Help | Contact Us
© Tiscali 2008
IT | NET

Access keys


You will need to use different key combinations in order to use access keys depending on your internet browser, find out which on our accessibility page.
  • (0) Navigate to Accessibility page.
  • (1) Navigate to Home page.
  • (2) Navigate to My email.
  • (3) Navigate to My Account.
  • (4) Navigate to Site Map page.
  • (5) Navigate to Contact us page.
  • (6) Navigate to Members channel.
  • (7) Navigate to Services channel.
  • (8) Navigate to News & Info channel.
  • (9) Navigate to Entertainment channel.
  • ([) Skip down to the Primary navigation block.
  • (]) Skip down to the more links within this section block.
  • (=) Bypass all navigation and jump to the content.