Question

in which of the following shapes will ruler formula not apply give reasons​

Answer 1

Answer:

NCERT solutions for class 6 Maths chapter 5 will prove to be very helpful to understand the concepts and excel in the Mathematics subject. Here you will find the latest updated solutions to prepare for the current academic session 2019-2020.

Exercise 5.1

1. What is the disadvantage in comparing line segment by mere observation?

Solution.

Comparing the lengths of two line segments by mere observation cannot tell us accurately that which line is shorter or which is longer.

2.Why is it better to use a divider than a ruler, while measuring the length of a line segment?

Solution.

While using a ruler, due to the incorrect position of eye, there are chances of error in the reading whereas, with ruler this error can be minimised and we can get an accurate result.

Jagranjosh

[Note: If A, B, C are any three points on a line such AC + CB = AB, then we can be sure that C lies between A and B]

Answer 2

Euler’s Formula

Euler’s formula is very simple but also very important in geometrical mathematics. It deals with the shapes called Polyhedron. A Polyhedron is a closed solid shape having flat faces and straight edges. For example, a polyhedron would be a cube but whereas a cylinder is not a polyhedron as it has curved edges. This Euler Characteristic will help us to classify the shapes.