NCERT Class 6 Mathematics Fifth Chapter Understanding Elementary Shapes Exercise 5.1 Solutions
EXERCISE 5.1
(1) What is the disadvantage in comparing line segments by mere observation?
(2) Why is it better to use a divider than a ruler, while measuring the length of a line segment?
![](https://www.netexplanations.com/wp-content/uploads/2018/09/25.png)
(4) If A,B,C are three points on a line such that AB = 5 cm, BC = 3 cm and AC = 8 cm, which one of them lies between the other two?
![](https://www.netexplanations.com/wp-content/uploads/2018/09/26-300x58.png)
Ans: Point B lies between the A and C.
![](https://www.netexplanations.com/wp-content/uploads/2018/09/28.png)
(6) If B is the mid point of AC and C is the mid point of BD, where A,B,C,D lie on a straight line, say why AB = CD?
![](https://www.netexplanations.com/wp-content/uploads/2018/09/27-300x28.png)
Ans: AB = BC and BC = CD; therefore AB = CD
(7) Draw five triangles and measure their sides. Check in each case, if the sum of the lengths of any two sides is always less than the third side.
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