Question

Find the square root by prime factorisation met
(1) 144 (11) 256 (11) 784 (iv) 1156
Find the square root by long division method
(1) 1764 (II) 6889 (ili) 11025 (iv) 1795
Estimate the value of the following square roots
(ii) 800 (ill)
(111) V1020
Find the square root of the following decimal
(1) 2.89 (1) 67.24 (ii) 2.0164 (iv)
(1) 440​

Answer 1

Answer:

2 x 2 x 2 x 2 x 3 x 3 =144.

2 x 2 x 2 x 2 x 2 x 2 x 2 x 2=256.

2 x 2 x 2 x 2=784.

2 x 2 x 17 x 17.

Step-by-step explanation:

The square root by prime factorisation method

Answer 2

Step-by-step explanation:

I)

(i)144

sol:- √144 = √2×2×2×2×3×3

=2×2×3

2| 144

2| 72

2|36

2|18

3|9

3|3

1

√144 = 12//