Question

please solve this question​

Answer 1

Answer:

4.47 is the value of root-20

Step-by-step explanation:

Used calculator

Answer 2

$\underline{\underline{\red{\bf Step \ by \ step \ Explanation :}}}$

Given that the approximate square root of 80 is 8.94 and we are required to find the value of √20. So ;

= √80

= √ [ 20 * 4 ]

= √ 20 * 2

= 8.94 * 2

= 17.88

Hence the required answer is 17.88 .