Question

tell me answer in detail​

Answer 1

Answer:

√500

Explanation:

1. √10^2+20^2
2. √100+400
3. √500
4. 10√5

Answer 2

$\huge\tt{Answer:-}$

$\sf ❖ \: \sqrt{ {10}^{2} + {20}^{2} }$

$\sf ➺ \: \sqrt{100 + 400}$

$\sf ➺ \: \sqrt{500}$

$\sf ➺ \: \sqrt{\underbrace{2 \times 2} \times \underbrace{5 \times 5} \times 5}$

$\sf ➺ \: 2 \times 5 \sqrt{5}$

$\sf ➺ \: 10 \sqrt{5}$

$\sf \color{fuchsia}Therefore, \: answer \: is \: 10 \sqrt{5}$