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RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8 PDF Download

Q.1. Evaluate: √1.69
Ans. 
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
∴ √1.69=1.3

Q.2. Evaluate: √33.64
Ans. 
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
∴ √33.64=5.8

Q.3. Evaluate: √156.25
Ans.
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
∴ √156.25 = 12.5

Q.4. Evaluate: √75.69
Ans. 
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
∴ √75.69=8.7

Q.5. Evaluate: √9.8596
Ans.
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
∴ √9.8596 = 3.14

Q.6. Evaluate: √10.0489
Ans.
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
∴ √10.0489=3.17

Q.7. Evaluate: √1.0816
Ans. 
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
∴ √1.0816 = 1.04

Q.8. Evaluate: √0.2916
Ans. 
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
∴ √0.2916 = 0.54

Q.9. Evaluate √3 up to two places of decimal.
Ans.
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
√3 = 1.732
⇒ √3 = 1.73 (correct up to two decimal places)

Q.10. Evaluate √2.8 correct up to two places of decimal.
Ans.
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
∴ √2.8=1.673
⇒ √2.8 =1.67 (correct up to two decimal places)

Q.11. Evaluate √0.9 correct up to two places of decimal.
Ans. 
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
∴   √0.9 = 0.948
⇒ √0.9 =0.95 ( correct up to two decimal places)

Q.12. Find the length of each side of a square whose area is equal to the area of a rectangle of length 13.6 metres and breadth 3.4 metres.
Ans. 
Area of the rectangle =(13.6 × 3.4) = 46.24 sq m
Thus, area of the square is 46.24 sq m.
Length of each side of the square = √46.24 m
Using long division method:
RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8
√46.24 = 6.8
Thus, the length of a side of the square is 6.8 metres.

The document RS Aggarwal Solutions: Exercise 3F - Squares and Square Roots | Mathematics (Maths) Class 8 is a part of the Class 8 Course Mathematics (Maths) Class 8.
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