## CBSE Class 8 Maths Important Questions for Cubes and Cube Roots - Free PDF Download

## 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.

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