CBSE Class 8 Maths Important Questions for Cubes and Cube Roots - Free PDF Download
CBSE Class 8 Maths Chapter 7 Cubes and Cube Roots Important Questions is an important part of the subject. To understand this chapter well, focus on how the experts have compiled the important questions, realise the context and learn how to solve them. Use these questions as a practice ground and their solutions as a guide for learning specific mathematical skills to score more in the exams.
Get the free PDF download of Important Questions with solutions for CBSE Class 8 Maths Chapter 7 - Cubes and Cube Roots prepared by expert Mathematics teachers from latest edition of CBSE (NCERT) books. Register online for Maths tuition on Vedantu.com to score more marks in your examination.
FAQs on Important Questions for CBSE Class 8 Maths Chapter 7 - Cubes and Cube Roots
1. What do you mean by a perfect cube?
An integer identical to another integer raised to the third power is called a perfect cube. Raising a number to the third power is referred to as cubing the number. A perfect cube is a result of multiplying the same integer three times. Thus, from 1 to 100, there are four perfect cubes: 1, 8, 27, and 64. Even though this is a simple concept, adequate practice is required to be well acquainted with cubes and cube roots.
2. What do you mean by cube roots?
Three times multiplied by an integer's cube root gives the original number. Unlike the square root, the cube root , has no domain restriction in real numbers. The radicand can be any real number, and the cube root will yield a real number as a result. Prime factorisation is an efficient and simple way of finding out the cube roots of any given number or checking whether the given number is a perfect cube or not. To learn and understand more about Cube Roots for Class 8 Chapter 7, visit Vedantu.
3. What is the prime factorisation of cube roots?
Prime factorisation is the process of factoring a number in terms of prime numbers, with prime numbers as the factors. In the prime factorisation of a number's cube, each prime factor appears three times. This is the only condition to determine the condition of any cube or cube root. To get the least prime factor of a number, start by dividing it by the smallest prime number, such as 2, then 3, 5, and so on.
4. How are cube roots used in real life?
When solving cubic equations, the cube root is frequently employed. For example, it may be used to find the dimensions of a three-dimensional object of a given volume. Using cube roots, you may get a more exact measurement of your flat. Cube roots are used in everyday mathematics to calculate the side of a three-dimensional cube when its volume is known, such as in powers and exponents. In metallurgy, cubes and cube roots are utilized to give the iron block a diving form.
5. Where can I avail the Solutions of Class 8 Maths Chapter 7 solutions?
The solutions are easily available on the Vedantu's website.
Visit the page NCERT Solutions for Class 8 Maths Chapter 7.
The webpage with Vedantu’s Solutions for Class 8 Maths Chapter 7 will open.
To download this, click on the Download PDF button and you can view the solutions offline.
Feel free to go through the other materials as well in case you have queries related to other topics or subjects. All of them are available on the Vedantu website and on the Vedantu app at free of cost.