Angle Properties   

Interior Angles 

Triangle: all triangles add up to 180 degrees  

 

 

Pentagon: 5 sided shape.(180 x 3=540)   

 

Quadrilateral: 4 sided shape, Angles add up to 180 degrees. (180degrees x 3=360)

 

 

sides:    |3   |4    |5    |6    |7     |8
Triangle:|1  |2    |3    |4    |5     |6                                  
Sum <: |180|360|540|720|906|1080          *Angle total=(sides - 2) x 180

Supplementry angles

A+B= 180 degrees

* adds up to 180 degrees*

 

 

 

 

Exterior Angles

<S + <R=180
<R + <Q + <P=180
<S + <Q + <P=180








360degrees
-  80degrees
- 115degrees
- 70  _degrees
 95 degrees

or you can do it backwords
  
100degrees
 +  65degrees
+110degrees
+  85_degrees
360degrees

 

 

Interior <          
  108degrees                   
+108degrees                  
+108degrees                 
+108degrees                  
+108degrees                 
  540degrees                  



Exterior<                                                    
                                                                                 72degrees
                                                                                  + 72degrees
                                                                                  +72degrees
                                                                                   + 72degrees
                                                                                   +72degrees   
                                                                                        360degrees                                                            

 

 Loonie

 

(sides-2)x180

(11-2)x180=1620  

1620/11=147.2727                                   

 exterior angle: 180 -     147.2727=32.727272

                                                     Exterior sum = 360degrees

 

                                 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



There are 3 angles, ray, ray and meet at vortex.
<WYD = 90degrees Corresponding to <KWA
<YDA = 115degrees Corresponding to <WAL
<DEB = 80degrees Alternate Interior <EBC
<EFS = 45degrees Alternate Exterior <XCN













Parallel Lines?

 Their parallel, because the corresponding angles are equal.

Not parallel, because the adjacent angles are not supplementary.
(Supplementary adds up to 180 degrees)

These angles are parallel because the alternate exterior angles are equal.

Math

                                                               MATH!!!

(Parellel lines)- For all you students who do not what parallel line are click the link below.
http://www.toolingu.com/definition-800155-7853-parallel-lines.html

Complimentary angles- is an angle that adds up to 90deg , theres not a way I can help you memorise this but i can however help you memorise what supplimentary angles is, Supplimentary angles is an angle that adds up to 180deg and just think of it this way, suppliments is a way to make your body bigger when of course in other terms means its going to be a higher degree.    

                              

                                                                                                           ex.

Corresponding angles- are equal cause there on the same side of the

trasversal which is the intercept of the parallel lines.

Alternate interior angles- Two angles that are on the opposite sides on the

transversal and inside the parallel lines are equal or in other words congruent.

Alternate exterior angles- Angles on opposite sides of the transversal and

outside the parallel lines.