Understanding the elementary shapes of Class 6 Maths
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Measuring line segments
A fixed portion of a line is called line segment. The measure of each line segment is a unique number which is called its length.
To compare two line segments, we will find a relation between their length. Below are the different methods-
- Comparison by observation: -By just looking at the two lines we can say which one is longer. Look at the below lines we can easily find which one is longer.
But at times, it’s difficult to measure by observation, so the need for better method arises.
- Comparison by using Tracing method-To compare line segment AB and line segment CD we use tracing paper, trace line segment CD and place the same on the line segment AB.
- Comparison using Ruler and a divider- If we need to measure line segment AB. We will open the Place the endpoint of one of its arms at A and the end point of the second arm at B. We will lift the divider, and place it on the ruler. We will ensure that opening of the divider is not disturbed. One endpoint will be on zero mark of the ruler and then we will read the reading against the other endpoint.
Angles-Right and Straight
One complete turn is called one revolution. The angle of one revolution is a complete angle. When the hand of a clock moves from one position to another it turns through an angle.
Continue ...... Understanding the elementary shapes of Class 6 maths
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