AAAMath.com
Sorted by Grade Level
Contact AAA Math Contact AAA Math      Contact AAA Math Buy the AAA Math CD      AAA Math en Español Spanish version

Sorted by Subject

Find the Fourth Angle of a QuadrilateralLearn LearnTable of Contents Table of Contents
Practice PracticeNext Lesson Next Lesson
Play PlayPrevious Lesson Previous Lesson
Explore Explore Feedback Feedback

Practice Your Spelling List

States of the United States

Nations of the World

 

Finding the Fourth Angle of a Quadrilateral

The sum of the interior angles of a quadrilateral are equal to 360o. To find the fourth angle of a quadrilateral when the other three angles are known, subtract the number of degrees in the other three angles from 360o.

Example: How many degrees are in the fourth angle of a quadrilateral whose other three angles are 80o and 110o and 95o? Answer: 360o - 80o - 110o - 95o = 75o






Find the number of degrees in the fourth angle.

  Angle D =    


You have correct and   incorrect.  This is percent correct.

Return to Top


Play
PlayGameWhat is it?Best Score
How many correct answers can you get in 60 seconds?
Extra time is awarded for each correct answer. Play longer by getting more correct.
How fast can you get 20 more correct answers than wrong answers?

Sudoku

Timez Attack Multiplication Video Game

Return to Top

Math Lessons by Grade
Math Topics

Math Resources

Spelling Lessons by Grade

Vocabulary Lessons by Grade

Geography

WorldPlenty.com

Other Interests

Return to Top



Copyright © 2009 J. Banfill. All Rights Reserved. Legal Notice

Copyright (C) 2009 J. Banfill. All Rights Reserved.