Skew Lines

 This object is a rectangular shaped, wooden drawer and has skew lines defining it.  Wooden drawers can be found in dressers or desks.  Skew Lines, however, can be found in windows, blocks, boxes, houses, and in many other objects.  Skew Lines are two lines that do no intersect and are not parallel or coplanar.  Even though Skew Lines aren't necessarily used for many things, they are found in almost everything.  

Congruent Isosceles Triangles Are Everywhere!

This is a picture of a bed frame.  The design of the metal frame forms an Isosceles triangles.  An  Isosceles Triangle has at least two congruent sides.  As you can tell, this object forms a triangle and has two congruent sides forming up to the apex of the triangle.  An Isosceles Triangle can be an acute, obtuse, equiangular, and even a right triangle! In this picture, the triangle is either an acute or equiangular isosceles triangle.  An Isosceles triangle is seen in everyday life in things such as: pizza slices, bicycle wheels, architectural structures, all the way to kaleidoscopes or even light rays!