A helicopter is a perfect description of a line perpendicular to a plane. Helicopters come in all shapes, sizes, and colors. This one happens to be a dark brown and an attack helicopter. The yellow line i drew in the picture is the plane. A plane is a flat surface with no thickness that extends forever. A line also has no thickness and extends forever. So in my picture the the helicopters wings is the plane because it does form a flat surface. The blue line is the line that I extended off of the helicopters wings. the line and the plane form a 90 degree angle. this means that the blue line is perpendicular to the yellow line! Helicopters are SO important around the world. This type of helicopter is used to provide air support for our troops. Other helicopters provide medical assistance, while others provide transportation for our troops, our president, and news reporters. Every news shot we see from the air comes from a helicopter.
I found this photo of the helicopter on http://topshdwallpaper.blogspot.com/2012/04/apache-helicopter-pictures.html
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