Thursday, October 18, 2012

Supplementary Angles That Are Not a Linear Pair


In this image there are three angels that when are added together equal 180 degrees.  These angles are supplementary but not a linear pair because there is one then two angles.  I found these supplies in my kitchen.  Another example and of this could be letters or triangles on a piece of paper.  


Non-Congruent Alternate Interior Angles

 

The light blue marks are representing the non-congruent alternate interior angles.  I found this on the piano in my house.  This is industry-specific to music production.  Another example of this could be a crosswalk through a road or where to cut a pipe.  

Segment Bisector

This is are part of my calendar that was found in my kitchen.  The green line is divided into 2 segments by the blue dot or midpoint.  The red line is the segment bisector because it intersects the segments in the middle.  Another example of this could be a window panel, or cut cake. This is industry- specific to marketing/advertising.  

Skew Lines



This oil can is a cube.  The circled lines of this cube are called skew lines because they do not intersect and never will. This item is industry-specific for oil.  Another example of this could be a tissue box or a stick of butter.  

Wednesday, October 17, 2012

Adjacent Non-Supplementary Angles


This is an image of adjacent non-supplementary angles.  Angle A when combined with angle B creates a 180 degree angle, but separately they are 90 degree angles.  This object was found in my kitchen.  Another example of this could be two rooms with a wall in between, or two chair back-to-back with each other.  

Vertical Angles



This is a pair of vertical angles within the letter X in an EXIT sign.  Another example of this would be an "X" shaped chair support, or a cross.  I found this idea when thinking of things that have to do with the letter X.  This is industry-specific to security/safety.

http://www.safetycommunity.com/profiles/blogs/what-do-the-metric-system-and 

An Angle Bisector

This is angle bisector in slices of pie.  The red lines show a 90 degree angle, and the blue line shows the bisector of the angle, dividing it into two, 45 degree angles.  Another example of this is a chart or a pizza.  This is industry-specific to food.  



http://meatandbakery.saraleefoodservice.com/Products/Bakery/ProductDetail.aspx?ProductID=1628 

Tuesday, October 16, 2012

Congruent Acute or Obtuse Angles

     This is showing two angles (pencils) and how they are congruent.  The circles on the inside of each angle show that they are congruent.  Another example of this is creating triangles and building walls and structures with equal or congruent sides.  

A Line Perpendicular to a Plane





     In this image a line (an arm) is intersection through a plane (the stool top).  This shows a line being perpendicular to a plane ( making a 90 degree angle).  An example of this could also be a spear through a target, or an umbrella through a table.  

Three or More Coplanar Parallel Lines



In this picture, three parallel paint brushes are laying on a counter (plane).  The paintbrushes and counter were both found in my house.  Bricks in a wall are an example of coplanar lines on a plane (being the wall).  Another example would be the posts of a fence.