My Math Forum  

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

Algebra Pre-Algebra and Basic Algebra Math Forum

LinkBack Thread Tools Display Modes
January 29th, 2013, 01:45 PM   #1
Joined: Aug 2011

Posts: 78
Thanks: 0

Help in solving a circle question

Question Points A, B, C and D lie in clockwise order on a circle. AB = 4cm, BC = 3cm and CD = 3.5 cm. AC is a diameter. Find the area of the quadrilateral ABCD.

Sorry for being dull but I am terrible when it comes to questions like this.

I know that as AB lies on the diameter that any angle drawing on it's diameter will be a right angle.

Would someone please be able to sketch and explain how to go about answering this question? I know that Pythagoras will be involved at some point.

Thanks but I really need to try and understand/practice these sorts of questions.

Would it happen to be a trapezium?
dthomas86 is offline  
January 29th, 2013, 02:21 PM   #2
Math Team
skeeter's Avatar
Joined: Jul 2011
From: Texas

Posts: 3,002
Thanks: 1588

Re: Help in solving a circle question

if AC is a diameter, then angle ABC is a right angle, as is angle CDA ; the quadrilateral is composed of two right triangles ...
skeeter is offline  

  My Math Forum > High School Math Forum > Algebra

circle, question, solving

Search tags for this page
Click on a term to search for related topics.
Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
Area enclosed by a semi-circle and a quarter circle yeoky Algebra 4 May 3rd, 2014 01:06 AM
Question about equation of a circle. Nicolea Algebra 1 August 27th, 2013 02:16 PM
Unit circle question jordanshaw Algebra 6 January 12th, 2011 12:01 PM
Help in solving this question xnarutox Algebra 5 September 10th, 2010 06:04 PM
Difficult question: equation of a circle roadnottaken Algebra 6 January 19th, 2007 01:22 PM

Copyright © 2019 My Math Forum. All rights reserved.