Exercise 3.9 Using square root table, find the square roots of the following: 1.) 7 Solution: From the table, we directly find that square root of is 2.646 2.) 15 Solution: 3.) 74 Solution: 4.) 82 Solution: 5.) 198 Solution: 6.) 540 Solution: 7.) 8700 Solution: 8.) 3509 Solution: 9.) 6929 Solution: 10.) 25725 […]
Tag: RD Sharma Class 8 3rd Chapter Solution
RD Sharma Class 8 Math 3rd Chapter Squares and square Roots Exercise 3.7 Solution
Exercise: 3.7 Find the square root of the following numbers in decimal form: 84.8241 Solution: Hence, The square root of 84.8241 is 9.21. 0.7225 Solution: Hence, the square root of 0.7225 is 0.85. 0.813604 Solution: Hence, the square root of 0813604 is 0.902 0.00002025 Solution: Hence, the square root of 0.00002025 is 0.0045. 150.0625 […]
RD Sharma Class 8 Math 3rd Chapter Squares and square Roots Exercise 3.6 Solution
Exercise 3.6 (1) Find the square root of: (2) Find the value of: 5. Find the length of a side a square playground whose area is equal to the area of a rectangular field of dimensions 72 m and 338 m. Solution: The area of the playground = 72 x 338 = 24336 m2 The […]
RD Sharma Class 8 Math 3rd Chapter Squares and Square Roots Exercise 3.5 Solution
Exercise 3.5 Find the square root of each of the following by long division method: (i) 12544 (ii) 97344 (iii) 286225 (iv) 390625 (v) 363609 (vi) 974169 (vii) 120409 (viii) 1471369 (ix) 291600 (x) 9653449 (xi) 1745041 (xii) 4008004 (xiii) 20657025 (xiv) 152547201 (xv) 20421361 (xvi) 62504836 (xvii) 82264900 (xviii) 3226694416 (xix) 6407522209 (xx) 3915380329 […]
RD Sharma Class 8 Math 3rd Chapter “Squares & Square Roots” Exercise 3.3 Solution
Chapter: “Squares & Square Roots Exercise 3.3” 1.) Find the squares of the following numbers using column method. Verify the result finding the square using the usual multiplication. (i) 25 (ii) 37 (iii) 54 (iv) 71 (v) 96 Solution: Here a=2, b=5 Step: 1 Make 3 columns and write the values of a2, 2 x […]
RD Sharma Class 8 Math 3rd Chapter “Squares & Square Roots” Exercise 3.4 Solution
Chapter: “Squares & Square Roots Exercise 3.4” Write the possible unit’s digits of the square root of the following numbers. Which of these numbers are odd square roots? (i) 9801 (ii) 99856 (iii) 998001 (iv) 657666025 Solution: (i) The unit digit of the number 9801 is 1. So, the possible unit digits are 1 or […]
RD Sharma Class 8 Math 3rd Chapter Squares and square roots Exercise 3.2 Solution
Exercise: 3.2 1.) The following number are not perfect squares. Give reason: (i) 1547 (ii) 45743 (iii)8948 (iv) 333333 Solution: If a number ends with 2, 3, 7 or 8, it cannot be a perfect square. (i) Given number: 1547 The last digit of a number is 7. Therefore, 1547 cannot be a perfect square. […]
RD Sharma Class 8 Math 3rd Chapter Squares and square roots Exercise 3.1 Solution
Which of the following numbers are perfect squares? (i) 484 (ii) 625 (iii) 576 (iv) 941 (v) 961 (vi) 2500 Solution: (i) 484 484 = 222 (ii) 625 625 = 252 (iii) 576 576 = 242 (iv) 941 Perfect squares closest to 941 are 900 (302) and 961 (312). Since 30 and 31 are consecutive […]
