My Math Forum  

Go Back   My Math Forum > High School Math Forum > Algebra

Algebra Pre-Algebra and Basic Algebra Math Forum


Reply
 
LinkBack Thread Tools Display Modes
May 18th, 2009, 12:06 PM   #1
Newbie
 
Joined: May 2009
From: Las Vegas

Posts: 21
Thanks: 0

Area of a Sector of a Circle

From my textbook:

(This I understand)

Suppose that

Then = area of the circle = (I don't understand this. How is the area of a sector the same as the area of the circle?)
Julie is offline  
 
May 18th, 2009, 12:32 PM   #2
Senior Member
 
Joined: Mar 2009

Posts: 318
Thanks: 0

The area of the circle is the area of the sector whose angle is "the whole way 'round".
stapel is offline  
May 18th, 2009, 12:41 PM   #3
Newbie
 
Joined: May 2009
From: Las Vegas

Posts: 21
Thanks: 0

Re:

Quote:
Originally Posted by stapel
The area of the circle is the area of the sector whose angle is "the whole way 'round".
Well that makes sense. I was looking at a picture in the text next to the example; the picture that had, so far, gone with the example. It showed a circle with about a 20 degree angle and I thought they were referring to that illustration.

Thanks for putting up with my "denseness"
Julie is offline  
Reply

  My Math Forum > High School Math Forum > Algebra

Tags
area, circle, sector



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
circle inscribed inside parabolic sector galactus Calculus 5 September 3rd, 2015 02:45 PM
Area enclosed by a semi-circle and a quarter circle yeoky Algebra 4 May 3rd, 2014 02:06 AM
Help with finding an area of a sector coolcat3 Algebra 4 October 8th, 2013 01:39 PM
help (the area of a sector) J.Xavier Algebra 2 September 13th, 2013 12:33 PM
sector and segment of a circle sheen_daphne Algebra 3 December 10th, 2008 08:09 AM





Copyright © 2019 My Math Forum. All rights reserved.