Page 151 - Maths Class 04
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The light of a torch spreads all around you. It has no end points. This kind of
light is known as ray .
A ray is, therefore, denoted by an end point and an arrow head.
End point Arrow head
Ray
Straight Line
« It has no end point.
« It can be extended on both sides.
« It has no fixed length.
« It is represented as AB.
Line Segment
« It has two end points.
« It cannot be extended.
« It has a fixed length.
« It is represented as AB.
Ray
« It has one end point.
« It can be extended on one side.
« It has no fixed length.
« It is represented as AB.
Curves
Closed curves and open curves are the types of curves.
Closed Curves
Look at the following curves.
Closed curves end at their starting point or have no ends.
Mathematics-4 151
