# KSEEB Solutions for Class 8 Maths Chapter 5 Squares, Square Roots, Cubes, Cube Roots Ex 5.2

Students can Download Maths Chapter 5 Squares, Square Roots, Cubes, Cube Roots Ex 5.2 Questions and Answers, Notes Pdf, KSEEB Solutions for Class 8 Maths helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations.

## Karnataka Board Class 8 Maths Chapter 5 Squares, Square Roots, Cubes, Cube Roots Ex 5.2

Question 1.
Find the sum 1 + 3 + 5 + _____ +51 (the sum fo all odd numbers from 1 to 51) without actually adding them.
The sum of first n odd numbers is n2
∴ 1 +3 + 5+ _____ + 51 = 262 = 676.

Question 2.
Express 144 as a sum of 12 odd numbers.
144 = 122 = 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23.

Question 3.
Find the 14th and 15th triangular numbers and find their sum verify the statement 8 for this sum.