## Tuesday, 29 May 2012

### 8th Maths Squares and square roots and Cubes and cube roots Assignments: 8th Maths Squares and square roots and Cubes and cube roots

Q-1. Show that 63504 is a perfect square.

Q-2. Find the smallest no. by which 25200 should be divided so that result is a perfect square.

Q-3. Find the greatest no. of 6-digit which is a prefect square.

Q-4. Find the least no. of 6-digit which is a prefect square.

Q-5. Write Pythagorean triplet whose one number is 14.

Q-6. Find the square root of 298116 by long division method.

Q-7. Find the square root of 3013696 by long division method.

Q-8. A welfare association collected Rs202500 as donation from the residents. If each paid as many rupees as there were residents, find the no. of residents.

Q-9. Find the square root of 121 and 169 by repeated subtraction method.

Q-10. A teacher wants to arrange maximum possible no. of 6000 students in a field such that the no. of rows is equal is the no. of column. Find the no. of rows if 71 were left out after arrangement.

Q-11. Find the values of  Q-12. Find the square root of 52 +857/2116

Q-13. Simplify    Q-14. Find the square root of 237.615 correct to 3 places of decimal.

Q-15. What is the smallest no. by which 3087 must be divided so that the quotient is a prefect cube?

Q-16. Evaluate {(242 +72)½}3.

Q-17. Evaluate  Q-18. Find the volume of a cube whose surface area is 384m2 .

Q-19. Find the volume of a cube, one face of which has an area of 64m2 .

Q-20. Show that -17576 is a prefect cube.

Q-21. Find the cube root of 140x2450.

Q-22. Divide the no. 26244 by the smallest no. so that the quotient is a prefect cube. Also, find the cube root of the quotient .

Q-23. Find the smallest square number divisible by each one of the numbers 8, 9 and 10.

Q-24. The area of a square field is 5184 m2. A rectangular field, whose length is twice its breadth has its perimeter equal to the perimeter of the square field. Find the area of the rectangular field.

Q-25. Three numbers are to one anther 2:3:4. The sum of their cubes is 33957. Find the numbers.

1. This comment has been removed by the author.

2. Sucks and not even helpless

3. The article is very nice. I am sure this might be advantageous for a majority of peoples searching for Best CBSE Schools in Ajman

4. 