Class 8 RD Sharma Solutions Chapter 3 Squares and Square Roots Exercise 3.7 | Set 2 (original) (raw)

Last Updated : 11 Sep, 2024

Introduction:

Exercise 3.7 Set 2 in Chapter 3 of RD Sharma's Class 8 mathematics textbook continues the exploration of squares and square roots. This set likely includes more advanced problems and applications of the concepts introduced in Set 1. Students will further develop their skills in working with perfect squares, finding square roots, and solving related problems. Class 8 RD Sharma Solutions - Chapter 3 Squares and Square Roots - Exercise 3.7 | Set 2

This section presents a comprehensive set of solutions for Exercise 3.7 from Chapter 3 of the Class 8 RD Sharma textbook. The solutions are aimed at helping students grasp the concepts of squares and square roots more effectively, ensuring a solid foundation in mathematics.

**Question 11) 9998.0001

**Solution:

Hence, the square root of 9998.0001 is 99.99.

**Question 12) 0.00038809

**Solution:

Hence, the square root of 84.8241 is 9.21.

**Question 13) What is that fraction which when multiplied by itself gives 227.798629?

**Solution:

We have to find the square root of the given number :

Hence, the fraction, which when multiplied by itself, gives 227.798649 is 15.093.

**Question 14) The area of square playground is 256.6404 square meters. Find the length of one side of the playground.

**Solution:

The length of one side of the playground is the square root of its area

So, the length of one side of the playground is 16.02 meters.

**Question 15) What is the fraction which when multiplied by itself gives 0.00053361?

**Solution:

We have to find the square root of the given number :

Hence, the fraction, which when multiplied by itself, gives 0.00053361 is 0.0231.

**Question 16) Simplify:

(1)\frac{\sqrt{59.29} - \sqrt{5.29}}{\sqrt{59.29} + \sqrt{5.29}} (2)\frac{\sqrt{0.2304} + \sqrt{0.1764}}{\sqrt{0.2304} - \sqrt{0.1764}}

**Solution:

**1) First, finding the square roots of 5.29 and 59.29

On putting the values on their respective positions, we have (7.7 - 2.3) / (7.7 + 2.3) = 5.4/10 = 0.54.

Hence, the answer is 0.54.

**2) First, finding the square roots of 0.2304 and 0.1764

On putting the values on their respective positions, we have (0.44 + 0.42) / (0.44 - 0.42) = 0.9/0.06 = 15.

Hence, the answer is 15.

**Question 17) Evaluate √50625 and hence find the value of √506.25 + √5.0625

**Solution:

Next, we calculate √506.25 and √5.0625

√506.25 = (√50625)/(√100) = 225/10 = 22.5

√5.0625 = (√50625)(√10000) = 225/100 = 2.25

**√506.25 + √5.0625 = 22.5 + 2.25 = 24.75.

**Question 18) Find the value of √103.0225 and hence find the value of:

**1) √10302.25 2) √1.030225

**Solution:

First, finding the square root of 103.0225

Hence, the square root of 103.0225 is 10.15

Now, we can solve the following questions as shown below:

**1) √10302.25 = (√103.0225)×(√100) = 10.15×10 = 101.5

**2) √1.030225 = (√103.0225)/(√100) = 10.15/10 = 1.015

Certainly. Let's dive into Class 8 RD Sharma Solutions - Chapter 3 Squares and Square Roots - Exercise 3.7 | Set 2.

Summary

Exercise 3.7 Set 2 in RD Sharma's Class 8 textbook likely provides a more challenging set of problems on squares and square roots, building upon the concepts from Set 1. These problems help students refine their skills in prime factorization, identifying perfect squares, and solving increasingly complex word problems involving squares and square roots.