Question

Find the square root of the following decimal numbers.

(i) 2.56 (ii) 7.29

(iii) 51.84 (iv) 42.25

(v) 31.36

Answer 1

(i) The square root of 2.56 can be calculated as follows.

	1. 6
1
26	156 156
	0

∴

(ii) The square root of 7.29 can be calculated as follows.

	2. 7
2
47	329 329
	0

∴

(iii) The square root of 51.84 can be calculated as follows.

	7.2
7
142	284 284
	0

∴

(iv) The square root of 42.25 can be calculated as follows.

	6.5
6
125	625 625
	0

∴

(v) The square root of 31.36 can be calculated as follows.

	5.6
5
106	636 636
	0

∴